Record Format for the 2MASS Sampler Extended Source Catalog (ESC)

Column # Column Name Description Units Data Type Nulls Allowed Indexed In Mini Set In Short Set In Standard Set
1 cntr entry counter (key) number (unique within table) --- integer n 1u n n y
2 ra right ascension (J2000 decimal deg) based on peak pixel deg decimal(9,6) n 1 y y y
3 dec declination (J2000 decimal deg) based on peak pixel deg decimal(8,6) n 1 y y y
4 glon galactic longitude (decimal deg) based on peak pixel deg decimal(9,6) n 0 n y y
5 glat galactic latitude (decimal deg) based on peak pixel deg decimal(9,6) n 1 n y y
6 r_3sig 3-sigma K isophotal semi-major axis arcsec decimal(4,1) y 0 y y y
7 j_ba J minor/major axis ratio fit to the 3-sigma isophote --- decimal(4,3) y 0 y y y
8 h_ba H minor/major axis ratio fit to the 3-sigma isophote --- decimal(4,3) y 0 y y y
9 k_ba K minor/major axis ratio fit to the 3-sigma isophote --- decimal(4,3) y 0 y y y
10 j_phi J angle to 3-sigma major axis (E of N) deg smallint y 0 y y y
11 h_phi H angle to 3-sigma major axis (E of N) deg smallint y 0 y y y
12 k_phi K angle to 3-sigma major axis (E of N) deg smallint y 0 y y y
13 j_m J selected "default" magnitude mag decimal(5,3) y 1 y y y
 Notes for j_m: This is the selected "default" magnitude for each band. The first choice for the [jhk]_m values are the mags in each band at 20 mag/sq.arcsec w/K fiducial circular aperture ([jhk]_m_k20fc), indicated by [jhk]_mtype values of 0. If, however, the K band mag in this group is > 14.0 (including negative flux or no mag found), all 3 [jhk]_m values will be the mags at 21 mag/sq.arcsec w/J fiducial circular aperture ([jhk]_m_j21fc) and the flags [jhk]_mtype are set to 1. If any one of chosen set of "default" mags is > 99, indicating no mag found, the DB entry for that "default" mag will be set to NULL.
Thus, the [jhk]_mtype flags will indicate the source of the "default" mags and sigmas as follows:
0: [jhk]_m_k20fe values
1: [jhk]_m_j21fe values
14 h_m H selected "default" magnitude mag decimal(5,3) y 1 y y y
 Notes for h_m: This is the selected "default" magnitude for each band. The first choice for the [jhk]_m values are the mags in each band at 20 mag/sq.arcsec w/K fiducial circular aperture ([jhk]_m_k20fc), indicated by [jhk]_mtype values of 0. If, however, the K band mag in this group is > 14.0 (including negative flux or no mag found), all 3 [jhk]_m values will be the mags at 21 mag/sq.arcsec w/J fiducial circular aperture ([jhk]_m_j21fc) and the flags [jhk]_mtype are set to 1. If any one of chosen set of "default" mags is > 99, indicating no mag found, the DB entry for that "default" mag will be set to NULL.
Thus, the [jhk]_mtype flags will indicate the source of the "default" mags and sigmas as follows:
0: [jhk]_m_k20fe values
1: [jhk]_m_j21fe values
15 k_m K selected "default" magnitude mag decimal(5,3) y 1 y y y
 Notes for k_m: This is the selected "default" magnitude for each band. The first choice for the [jhk]_m values are the mags in each band at 20 mag/sq.arcsec w/K fiducial circular aperture ([jhk]_m_k20fc), indicated by [jhk]_mtype values of 0. If, however, the K band mag in this group is > 14.0 (including negative flux or no mag found), all 3 [jhk]_m values will be the mags at 21 mag/sq.arcsec w/J fiducial circular aperture ([jhk]_m_j21fc) and the flags [jhk]_mtype are set to 1. If any one of chosen set of "default" mags is > 99, indicating no mag found, the DB entry for that "default" mag will be set to NULL.
Thus, the [jhk]_mtype flags will indicate the source of the "default" mags and sigmas as follows:
0: [jhk]_m_k20fe values
1: [jhk]_m_j21fe values
16 j_msig J "default" mag uncertainty mag decimal(4,3) y 0 y y y
 Notes for j_msig: The mag sigma values corresponding to the selected "default" magnitude for each band are put in the [jhk]_msig fields.
17 h_msig H "default" mag uncertainty mag decimal(4,3) y 0 y y y
 Notes for h_msig: The mag sigma values corresponding to the selected "default" magnitude for each band are put in the [jhk]_msig fields.
18 k_msig K "default" mag uncertainty mag decimal(4,3) y 0 y y y
 Notes for k_msig: The mag sigma values corresponding to the selected "default" magnitude for each band are put in the [jhk]_msig fields.
19 j_flg J confusion flag for "default" magnitude --- smallint y 0 y y y
 Notes for j_flg: The confusion flags [jhk]_flg* for each mag are defined as follows:
0 if no other sources within aperture used
1 if ap contained pixels masked off in coadd
2 if ap contained pixels masked off due to neighboring sources
3 if ap contained pixels that had a point source flux subtracted off
4 if ap contained pixels within bright star mask
5 if ap contained pixels masked off due to persistence
6 if aperture ran into coadd boundary
7 if ap contained pixels within bright galaxy mask
9 if integrated flux is negative
If the integrated flux is negative, a mag value is calculated using
    BFMag = 99.0 - [ZERO_CAL - 2.5 log10(|flux|)];
the resulting mag range is between ~ 75 and 99.
20 h_flg H confusion flag for "default" magnitude --- smallint y 0 y y y
 Notes for h_flg: The confusion flags [jhk]_flg* for each mag are defined as follows:
0 if no other sources within aperture used
1 if ap contained pixels masked off in coadd
2 if ap contained pixels masked off due to neighboring sources
3 if ap contained pixels that had a point source flux subtracted off
4 if ap contained pixels within bright star mask
5 if ap contained pixels masked off due to persistence
6 if aperture ran into coadd boundary
7 if ap contained pixels within bright galaxy mask
9 if integrated flux is negative
If the integrated flux is negative, a mag value is calculated using
    BFMag = 99.0 - [ZERO_CAL - 2.5 log10(|flux|)];
the resulting mag range is between ~ 75 and 99.
21 k_flg K confusion flag for "default" magnitude --- smallint y 0 y y y
 Notes for k_flg: The confusion flags [jhk]_flg* for each mag are defined as follows:
0 if no other sources within aperture used
1 if ap contained pixels masked off in coadd
2 if ap contained pixels masked off due to neighboring sources
3 if ap contained pixels that had a point source flux subtracted off
4 if ap contained pixels within bright star mask
5 if ap contained pixels masked off due to persistence
6 if aperture ran into coadd boundary
7 if ap contained pixels within bright galaxy mask
9 if integrated flux is negative
If the integrated flux is negative, a mag value is calculated using
    BFMag = 99.0 - [ZERO_CAL - 2.5 log10(|flux|)];
the resulting mag range is between ~ 75 and 99.
22 j_mtype source of J "default" mag (0=j_m_k20fe, 1=j_m_j21fe) --- smallint n 0 y y y
23 h_mtype source of H "default" mag (0=h_m_k20fe, 1=h_m_j21fe) --- smallint n 0 y y y
24 k_mtype source of K "default" mag (0=k_m_k20fe, 1=k_m_j21fe) --- smallint n 0 y y y
25 j_h default J-H mag color mag decimal(5,3) y 1 n y y
 Notes for j_h: Magnitude colors are calculated using the [jhk]_m default mags and sigmas for the extended sources and the optical mags [br]_m_opt in the associated point source entry. If one of the mags used in a color calculation is NULL, the color value is an upper or lower limit. (Color limits are NOT calculated when both mags are NULL.)
26 j_h_sig sigma for J-H mag color mag decimal(4,3) y 0 n y y
 Notes for j_h_sig: For colors having detections in both bands, the color mag sigma values are the root-sum-square of the two mag sigmas. If one of the mags used in the calculation is NULL, the color sigma is the other band's mag sigma.
27 h_k default H-K mag color mag decimal(5,3) y 1 n y y
 Notes for h_k: Magnitude colors are calculated using the [jhk]_m default mags and sigmas for the extended sources and the optical mags [br]_m_opt in the associated point source entry. If one of the mags used in a color calculation is NULL, the color value is an upper or lower limit. (Color limits are NOT calculated when both mags are NULL.)
28 h_k_sig sigma for H-K mag color mag decimal(4,3) y 0 n y y
 Notes for h_k_sig: For colors having detections in both bands, the color mag sigma values are the root-sum-square of the two mag sigmas. If one of the mags used in the calculation is NULL, the color sigma is the other band's mag sigma.
29 j_k default J-K mag color mag decimal(5,3) y 1 n y y
 Notes for j_k: Magnitude colors are calculated using the [jhk]_m default mags and sigmas for the extended sources and the optical mags [br]_m_opt in the associated point source entry. If one of the mags used in a color calculation is NULL, the color value is an upper or lower limit. (Color limits are NOT calculated when both mags are NULL.)
30 j_k_sig sigma for J-K mag color mag decimal(4,3) y 0 n y y
 Notes for j_k_sig: For colors having detections in both bands, the color mag sigma values are the root-sum-square of the two mag sigmas. If one of the mags used in the calculation is NULL, the color sigma is the other band's mag sigma.
31 b_r B-R mag color of associated optical source mag decimal(5,3) y 0 n y y
32 r_k default R-K mag color (using associated optical source) mag decimal(5,3) y 0 n y y
 Notes for r_k: Magnitude colors are calculated using the [jhk]_m default mags and sigmas for the extended sources and the optical mags [br]_m_opt in the associated point source entry. If one of the mags used in a color calculation is NULL, the color value is an upper or lower limit. (Color limits are NOT calculated when both mags are NULL.)
33 b_k default B-K mag color mag decimal(5,3) y 0 n y y
 Notes for b_k: Magnitude colors are calculated using the [jhk]_m default mags and sigmas for the extended sources and the optical mags [br]_m_opt in the associated point source entry. If one of the mags used in a color calculation is NULL, the color value is an upper or lower limit. (Color limits are NOT calculated when both mags are NULL.)
34 r_j default R-J mag color mag decimal(5,3) y 0 n y y
 Notes for r_j: Magnitude colors are calculated using the [jhk]_m default mags and sigmas for the extended sources and the optical mags [br]_m_opt in the associated point source entry. If one of the mags used in a color calculation is NULL, the color value is an upper or lower limit. (Color limits are NOT calculated when both mags are NULL.)
35 b_j default B-J mag color mag decimal(5,3) y 0 n y y
 Notes for b_j: Magnitude colors are calculated using the [jhk]_m default mags and sigmas for the extended sources and the optical mags [br]_m_opt in the associated point source entry. If one of the mags used in a color calculation is NULL, the color value is an upper or lower limit. (Color limits are NOT calculated when both mags are NULL.)
36 j_m_7 J 7 arcsec radius circular aperture magnitude mag decimal(5,3) y 0 n y y
37 h_m_7 H 7 arcsec radius circular aperture magnitude mag decimal(5,3) y 0 n y y
38 k_m_7 K 7 arcsec radius circular aperture magnitude mag decimal(5,3) y 0 n y y
39 j_msig_7 J 1-sigma uncertainty in 7 arcsec circular ap. mag mag decimal(4,3) y 0 n y y
40 h_msig_7 H 1-sigma uncertainty in 7 arcsec circular ap. mag mag decimal(4,3) y 0 n y y
41 k_msig_7 K 1-sigma uncertainty in 7 arcsec circular ap. mag mag decimal(4,3) y 0 n y y
42 j_flg_7 J confusion flag for 7 arcsec circular ap. mag --- smallint y 0 n y y
 Notes for j_flg_7: The confusion flags [jhk]_flg* for each mag are defined as follows:
0 if no other sources within aperture used
1 if ap contained pixels masked off in coadd
2 if ap contained pixels masked off due to neighboring sources
3 if ap contained pixels that had a point source flux subtracted off
4 if ap contained pixels within bright star mask
5 if ap contained pixels masked off due to persistence
6 if aperture ran into coadd boundary
7 if ap contained pixels within bright galaxy mask
9 if integrated flux is negative
If the integrated flux is negative, a mag value is calculated using
    BFMag = 99.0 - [ZERO_CAL - 2.5 log10(|flux|)];
the resulting mag range is between ~ 75 and 99.
43 h_flg_7 H confusion flag for 7 arcsec circular ap. mag --- smallint y 0 n y y
 Notes for h_flg_7: The confusion flags [jhk]_flg* for each mag are defined as follows:
0 if no other sources within aperture used
1 if ap contained pixels masked off in coadd
2 if ap contained pixels masked off due to neighboring sources
3 if ap contained pixels that had a point source flux subtracted off
4 if ap contained pixels within bright star mask
5 if ap contained pixels masked off due to persistence
6 if aperture ran into coadd boundary
7 if ap contained pixels within bright galaxy mask
9 if integrated flux is negative
If the integrated flux is negative, a mag value is calculated using
    BFMag = 99.0 - [ZERO_CAL - 2.5 log10(|flux|)];
the resulting mag range is between ~ 75 and 99.
44 k_flg_7 K confusion flag for 7 arcsec circular ap. mag --- smallint y 0 n y y
 Notes for k_flg_7: The confusion flags [jhk]_flg* for each mag are defined as follows:
0 if no other sources within aperture used
1 if ap contained pixels masked off in coadd
2 if ap contained pixels masked off due to neighboring sources
3 if ap contained pixels that had a point source flux subtracted off
4 if ap contained pixels within bright star mask
5 if ap contained pixels masked off due to persistence
6 if aperture ran into coadd boundary
7 if ap contained pixels within bright galaxy mask
9 if integrated flux is negative
If the integrated flux is negative, a mag value is calculated using
    BFMag = 99.0 - [ZERO_CAL - 2.5 log10(|flux|)];
the resulting mag range is between ~ 75 and 99.
45 j_peak J peak pixel brightness mag decimal(5,2) y 0 n y y
46 h_peak H peak pixel brightness mag decimal(5,2) y 0 n y y
47 k_peak K peak pixel brightness mag decimal(5,2) y 0 n y y
48 j_5surf J central surface brightness (r<=5) mag decimal(5,2) y 0 n y y
49 h_5surf H central surface brightness (r<=5) mag decimal(5,2) y 0 n y y
50 k_5surf K central surface brightness (r<=5) mag decimal(5,2) y 0 n y y
51 id_flg type/galaxy ID flag (0=non-catalog, 1=catalog, 2=LCSB) --- smallint n 0 n y y
 Notes for id_flg: This flag indicates the extended source catalog type as follows:
0 = extended source not found in another catalog
1 = extended source is found in galaxy catalog (ID found in id_cat field)
2 = LCSB (Low Central Surface Brightness) source
52 id_cat matched galaxy's catalog name --- char(10) y 0 n y y
53 density coadd log(density per sq.deg.) of stars with k<14 mag --- decimal(4,2) y 0 n y y
54 j_bisym_rat J bi-symmetric flux ratio --- decimal(4,3) y 0 n y y
55 h_bisym_rat H bi-symmetric flux ratio --- decimal(4,3) y 0 n y y
56 k_bisym_rat K bi-symmetric flux ratio --- decimal(4,3) y 0 n y y
57 j_sc_sh J shape (score) --- decimal(5,1) y 0 n y y
58 h_sc_sh H shape (score) --- decimal(5,1) y 0 n y y
59 k_sc_sh K shape (score) --- decimal(5,1) y 0 n y y
60 j_sc_wsh J wsh (score) (LCSB: PSNR - peak raw SNR) --- decimal(5,1) y 0 n y y
61 h_sc_wsh H wsh (score) (LCSB: PSNR - peak raw SNR) --- decimal(5,1) y 0 n y y
62 k_sc_wsh K wsh (score) (LCSB: PSNR - peak raw SNR) --- decimal(5,1) y 0 n y y
63 e_score extended weight-average flag (1.0=fuzziest, 2.0=pointlike) --- decimal(3,2) n 1 y y y
64 g_score galaxy weight-average flag (1.0=fuzziest, 2.0=pointlike) --- decimal(3,2) n 1 y y y
65 hemis hemisphere (N/S) of observation --- char(1) n 21 n n y
66 date observation date --- date n 122 n n y
67 scan scan number (unique within date) --- smallint n 123 n n y
68 coadd 3-digit coadd number (unique within scan) --- smallint n 24 n n y
69 id source ID number (unique within scan, coadd) --- integer n 25 n n y
70 x_coadd x (cross-scan) position (coadd coord.) arcsec decimal(4,1) n 1 n n n
71 y_coadd y (in-scan) position (coadd coord.) arcsec decimal(5,1) n 1 n n n
72 j_r_e J Kron elliptical aperture semi-major axis arcsec decimal(4,1) y 0 n n n
73 h_r_e H Kron elliptical aperture semi-major axis arcsec decimal(4,1) y 0 n n n
74 k_r_e K Kron elliptical aperture semi-major axis arcsec decimal(4,1) y 0 n n n
75 j_m_e J Kron elliptical aperture magnitude mag decimal(5,3) y 0 n n n
76 h_m_e H Kron elliptical aperture magnitude mag decimal(5,3) y 0 n n n
77 k_m_e K Kron elliptical aperture magnitude mag decimal(5,3) y 0 n n n
78 j_msig_e J 1-sigma uncertainty in Kron elliptical mag mag decimal(4,3) y 0 n n n
79 h_msig_e H 1-sigma uncertainty in Kron elliptical mag mag decimal(4,3) y 0 n n n
80 k_msig_e K 1-sigma uncertainty in Kron elliptical mag mag decimal(4,3) y 0 n n n
81 j_flg_e J confusion flag for Kron elliptical mag --- smallint y 0 n n n
 Notes for j_flg_e: The confusion flags [jhk]_flg* for each mag are defined as follows:
0 if no other sources within aperture used
1 if ap contained pixels masked off in coadd
2 if ap contained pixels masked off due to neighboring sources
3 if ap contained pixels that had a point source flux subtracted off
4 if ap contained pixels within bright star mask
5 if ap contained pixels masked off due to persistence
6 if aperture ran into coadd boundary
7 if ap contained pixels within bright galaxy mask
9 if integrated flux is negative
If the integrated flux is negative, a mag value is calculated using
    BFMag = 99.0 - [ZERO_CAL - 2.5 log10(|flux|)];
the resulting mag range is between ~ 75 and 99.
82 h_flg_e H confusion flag for Kron elliptical mag --- smallint y 0 n n n
 Notes for h_flg_e: The confusion flags [jhk]_flg* for each mag are defined as follows:
0 if no other sources within aperture used
1 if ap contained pixels masked off in coadd
2 if ap contained pixels masked off due to neighboring sources
3 if ap contained pixels that had a point source flux subtracted off
4 if ap contained pixels within bright star mask
5 if ap contained pixels masked off due to persistence
6 if aperture ran into coadd boundary
7 if ap contained pixels within bright galaxy mask
9 if integrated flux is negative
If the integrated flux is negative, a mag value is calculated using
    BFMag = 99.0 - [ZERO_CAL - 2.5 log10(|flux|)];
the resulting mag range is between ~ 75 and 99.
83 k_flg_e K confusion flag for Kron elliptical mag --- smallint y 0 n n n
 Notes for k_flg_e: The confusion flags [jhk]_flg* for each mag are defined as follows:
0 if no other sources within aperture used
1 if ap contained pixels masked off in coadd
2 if ap contained pixels masked off due to neighboring sources
3 if ap contained pixels that had a point source flux subtracted off
4 if ap contained pixels within bright star mask
5 if ap contained pixels masked off due to persistence
6 if aperture ran into coadd boundary
7 if ap contained pixels within bright galaxy mask
9 if integrated flux is negative
If the integrated flux is negative, a mag value is calculated using
    BFMag = 99.0 - [ZERO_CAL - 2.5 log10(|flux|)];
the resulting mag range is between ~ 75 and 99.
84 r_fe K fiducial Kron elliptical aperture semi-major axis arcsec decimal(4,1) y 0 n n n
 Notes for r_fe: "Fiducial" apertures are determined for each type of total and isophotal photometry measurements as described in the GALWORKS SDS. Essentially, they are used to make mag measurements for each type of photometry with the same aperture size in all three bands. The fiducial band for the total Kron photometry and 20mag/sq." isophotal photometry is the K band, and for the 21mag/sq." isophotal photometry it is the J band.
85 j_m_fe J fiducial Kron elliptical aperture magnitude mag decimal(5,3) y 0 n n n
86 h_m_fe H fiducial Kron elliptical aperture magnitude mag decimal(5,3) y 0 n n n
87 k_m_fe K fiducial Kron elliptical aperture magnitude mag decimal(5,3) y 0 n n n
88 j_msig_fe J 1-sigma uncertainty in fiducial Kron ell. mag mag decimal(4,3) y 0 n n n
89 h_msig_fe H 1-sigma uncertainty in fiducial Kron ell. mag mag decimal(4,3) y 0 n n n
90 k_msig_fe K 1-sigma uncertainty in fiducial Kron ell. mag mag decimal(4,3) y 0 n n n
91 j_flg_fe J confusion flag for fiducial Kron ell. mag --- smallint y 0 n n n
 Notes for j_flg_fe: The confusion flags [jhk]_flg* for each mag are defined as follows:
0 if no other sources within aperture used
1 if ap contained pixels masked off in coadd
2 if ap contained pixels masked off due to neighboring sources
3 if ap contained pixels that had a point source flux subtracted off
4 if ap contained pixels within bright star mask
5 if ap contained pixels masked off due to persistence
6 if aperture ran into coadd boundary
7 if ap contained pixels within bright galaxy mask
9 if integrated flux is negative
If the integrated flux is negative, a mag value is calculated using
    BFMag = 99.0 - [ZERO_CAL - 2.5 log10(|flux|)];
the resulting mag range is between ~ 75 and 99.
92 h_flg_fe H confusion flag for fiducial Kron ell. mag --- smallint y 0 n n n
 Notes for h_flg_fe: The confusion flags [jhk]_flg* for each mag are defined as follows:
0 if no other sources within aperture used
1 if ap contained pixels masked off in coadd
2 if ap contained pixels masked off due to neighboring sources
3 if ap contained pixels that had a point source flux subtracted off
4 if ap contained pixels within bright star mask
5 if ap contained pixels masked off due to persistence
6 if aperture ran into coadd boundary
7 if ap contained pixels within bright galaxy mask
9 if integrated flux is negative
If the integrated flux is negative, a mag value is calculated using
    BFMag = 99.0 - [ZERO_CAL - 2.5 log10(|flux|)];
the resulting mag range is between ~ 75 and 99.
93 k_flg_fe K confusion flag for fiducial Kron ell. mag --- smallint y 0 n n n
 Notes for k_flg_fe: The confusion flags [jhk]_flg* for each mag are defined as follows:
0 if no other sources within aperture used
1 if ap contained pixels masked off in coadd
2 if ap contained pixels masked off due to neighboring sources
3 if ap contained pixels that had a point source flux subtracted off
4 if ap contained pixels within bright star mask
5 if ap contained pixels masked off due to persistence
6 if aperture ran into coadd boundary
7 if ap contained pixels within bright galaxy mask
9 if integrated flux is negative
If the integrated flux is negative, a mag value is calculated using
    BFMag = 99.0 - [ZERO_CAL - 2.5 log10(|flux|)];
the resulting mag range is between ~ 75 and 99.
94 j_r_c J Kron circular aperture radius arcsec decimal(4,1) y 0 n n n
95 h_r_c H Kron circular aperture radius arcsec decimal(4,1) y 0 n n n
96 k_r_c K Kron circular aperture radius arcsec decimal(4,1) y 0 n n n
97 j_m_c J Kron circular aperture magnitude mag decimal(5,3) y 0 n n n
98 h_m_c H Kron circular aperture magnitude mag decimal(5,3) y 0 n n n
99 k_m_c K Kron circular aperture magnitude mag decimal(5,3) y 0 n n n
100 j_msig_c J 1-sigma uncertainty in Kron circular mag mag decimal(4,3) y 0 n n n
101 h_msig_c H 1-sigma uncertainty in Kron circular mag mag decimal(4,3) y 0 n n n
102 k_msig_c K 1-sigma uncertainty in Kron circular mag mag decimal(4,3) y 0 n n n
103 j_flg_c J confusion flag for Kron circular mag --- smallint y 0 n n n
 Notes for j_flg_c: The confusion flags [jhk]_flg* for each mag are defined as follows:
0 if no other sources within aperture used
1 if ap contained pixels masked off in coadd
2 if ap contained pixels masked off due to neighboring sources
3 if ap contained pixels that had a point source flux subtracted off
4 if ap contained pixels within bright star mask
5 if ap contained pixels masked off due to persistence
6 if aperture ran into coadd boundary
7 if ap contained pixels within bright galaxy mask
9 if integrated flux is negative
If the integrated flux is negative, a mag value is calculated using
    BFMag = 99.0 - [ZERO_CAL - 2.5 log10(|flux|)];
the resulting mag range is between ~ 75 and 99.
104 h_flg_c H confusion flag for Kron circular mag --- smallint y 0 n n n
 Notes for h_flg_c: The confusion flags [jhk]_flg* for each mag are defined as follows:
0 if no other sources within aperture used
1 if ap contained pixels masked off in coadd
2 if ap contained pixels masked off due to neighboring sources
3 if ap contained pixels that had a point source flux subtracted off
4 if ap contained pixels within bright star mask
5 if ap contained pixels masked off due to persistence
6 if aperture ran into coadd boundary
7 if ap contained pixels within bright galaxy mask
9 if integrated flux is negative
If the integrated flux is negative, a mag value is calculated using
    BFMag = 99.0 - [ZERO_CAL - 2.5 log10(|flux|)];
the resulting mag range is between ~ 75 and 99.
105 k_flg_c K confusion flag for Kron circular mag --- smallint y 0 n n n
 Notes for k_flg_c: The confusion flags [jhk]_flg* for each mag are defined as follows:
0 if no other sources within aperture used
1 if ap contained pixels masked off in coadd
2 if ap contained pixels masked off due to neighboring sources
3 if ap contained pixels that had a point source flux subtracted off
4 if ap contained pixels within bright star mask
5 if ap contained pixels masked off due to persistence
6 if aperture ran into coadd boundary
7 if ap contained pixels within bright galaxy mask
9 if integrated flux is negative
If the integrated flux is negative, a mag value is calculated using
    BFMag = 99.0 - [ZERO_CAL - 2.5 log10(|flux|)];
the resulting mag range is between ~ 75 and 99.
106 r_fc K fiducial Kron circular aperture radius arcsec decimal(4,1) y 0 n n n
 Notes for r_fc: "Fiducial" apertures are determined for each type of total and isophotal photometry measurements as described in the GALWORKS SDS. Essentially, they are used to make mag measurements for each type of photometry with the same aperture size in all three bands. The fiducial band for the total Kron photometry and 20mag/sq." isophotal photometry is the K band, and for the 21mag/sq." isophotal photometry it is the J band.
107 j_m_fc J fiducial Kron circular magnitude mag decimal(5,3) y 1 n n n
108 h_m_fc H fiducial Kron circular magnitude mag decimal(5,3) y 1 n n n
109 k_m_fc K fiducial Kron circular magnitude mag decimal(5,3) y 1 n n n
110 j_msig_fc J 1-sigma uncertainty in fiducial Kron circ. mag mag decimal(4,3) y 0 n n n
111 h_msig_fc H 1-sigma uncertainty in fiducial Kron circ. mag mag decimal(4,3) y 0 n n n
112 k_msig_fc K 1-sigma uncertainty in fiducial Kron circ. mag mag decimal(4,3) y 0 n n n
113 j_flg_fc J confusion flag for fiducial Kron circ. mag --- smallint y 0 n n n
 Notes for j_flg_fc: The confusion flags [jhk]_flg* for each mag are defined as follows:
0 if no other sources within aperture used
1 if ap contained pixels masked off in coadd
2 if ap contained pixels masked off due to neighboring sources
3 if ap contained pixels that had a point source flux subtracted off
4 if ap contained pixels within bright star mask
5 if ap contained pixels masked off due to persistence
6 if aperture ran into coadd boundary
7 if ap contained pixels within bright galaxy mask
9 if integrated flux is negative
If the integrated flux is negative, a mag value is calculated using
    BFMag = 99.0 - [ZERO_CAL - 2.5 log10(|flux|)];
the resulting mag range is between ~ 75 and 99.
114 h_flg_fc H confusion flag for fiducial Kron circ. mag --- smallint y 0 n n n
 Notes for h_flg_fc: The confusion flags [jhk]_flg* for each mag are defined as follows:
0 if no other sources within aperture used
1 if ap contained pixels masked off in coadd
2 if ap contained pixels masked off due to neighboring sources
3 if ap contained pixels that had a point source flux subtracted off
4 if ap contained pixels within bright star mask
5 if ap contained pixels masked off due to persistence
6 if aperture ran into coadd boundary
7 if ap contained pixels within bright galaxy mask
9 if integrated flux is negative
If the integrated flux is negative, a mag value is calculated using
    BFMag = 99.0 - [ZERO_CAL - 2.5 log10(|flux|)];
the resulting mag range is between ~ 75 and 99.
115 k_flg_fc K confusion flag for fiducial Kron circ. mag --- smallint y 0 n n n
 Notes for k_flg_fc: The confusion flags [jhk]_flg* for each mag are defined as follows:
0 if no other sources within aperture used
1 if ap contained pixels masked off in coadd
2 if ap contained pixels masked off due to neighboring sources
3 if ap contained pixels that had a point source flux subtracted off
4 if ap contained pixels within bright star mask
5 if ap contained pixels masked off due to persistence
6 if aperture ran into coadd boundary
7 if ap contained pixels within bright galaxy mask
9 if integrated flux is negative
If the integrated flux is negative, a mag value is calculated using
    BFMag = 99.0 - [ZERO_CAL - 2.5 log10(|flux|)];
the resulting mag range is between ~ 75 and 99.
116 j_r_i20e J 20mag/sq." isophotal elliptical ap. semi-major axis arcsec decimal(4,1) y 0 n n n
117 h_r_i20e H 20mag/sq." isophotal elliptical ap. semi-major axis arcsec decimal(4,1) y 0 n n n
118 k_r_i20e K 20mag/sq." isophotal elliptical ap. semi-major axis arcsec decimal(4,1) y 0 n n n
119 j_m_i20e J 20mag/sq." isophotal elliptical ap. magnitude mag decimal(5,3) y 0 n n n
120 h_m_i20e H 20mag/sq." isophotal elliptical ap. magnitude mag decimal(5,3) y 0 n n n
121 k_m_i20e K 20mag/sq." isophotal elliptical ap. magnitude mag decimal(5,3) y 0 n n n
122 j_msig_i20e J 1-sigma uncertainty in 20mag/sq." iso. ell. mag mag decimal(4,3) y 0 n n n
123 h_msig_i20e H 1-sigma uncertainty in 20mag/sq." iso. ell. mag mag decimal(4,3) y 0 n n n
124 k_msig_i20e K 1-sigma uncertainty in 20mag/sq." iso. ell. mag mag decimal(4,3) y 0 n n n
125 j_flg_i20e J confusion flag for 20mag/sq." iso. ell. mag --- smallint y 0 n n n
 Notes for j_flg_i20e: The confusion flags [jhk]_flg* for each mag are defined as follows:
0 if no other sources within aperture used
1 if ap contained pixels masked off in coadd
2 if ap contained pixels masked off due to neighboring sources
3 if ap contained pixels that had a point source flux subtracted off
4 if ap contained pixels within bright star mask
5 if ap contained pixels masked off due to persistence
6 if aperture ran into coadd boundary
7 if ap contained pixels within bright galaxy mask
9 if integrated flux is negative
If the integrated flux is negative, a mag value is calculated using
    BFMag = 99.0 - [ZERO_CAL - 2.5 log10(|flux|)];
the resulting mag range is between ~ 75 and 99.
126 h_flg_i20e H confusion flag for 20mag/sq." iso. ell. mag --- smallint y 0 n n n
 Notes for h_flg_i20e: The confusion flags [jhk]_flg* for each mag are defined as follows:
0 if no other sources within aperture used
1 if ap contained pixels masked off in coadd
2 if ap contained pixels masked off due to neighboring sources
3 if ap contained pixels that had a point source flux subtracted off
4 if ap contained pixels within bright star mask
5 if ap contained pixels masked off due to persistence
6 if aperture ran into coadd boundary
7 if ap contained pixels within bright galaxy mask
9 if integrated flux is negative
If the integrated flux is negative, a mag value is calculated using
    BFMag = 99.0 - [ZERO_CAL - 2.5 log10(|flux|)];
the resulting mag range is between ~ 75 and 99.
127 k_flg_i20e K confusion flag for 20mag/sq." iso. ell. mag --- smallint y 0 n n n
 Notes for k_flg_i20e: The confusion flags [jhk]_flg* for each mag are defined as follows:
0 if no other sources within aperture used
1 if ap contained pixels masked off in coadd
2 if ap contained pixels masked off due to neighboring sources
3 if ap contained pixels that had a point source flux subtracted off
4 if ap contained pixels within bright star mask
5 if ap contained pixels masked off due to persistence
6 if aperture ran into coadd boundary
7 if ap contained pixels within bright galaxy mask
9 if integrated flux is negative
If the integrated flux is negative, a mag value is calculated using
    BFMag = 99.0 - [ZERO_CAL - 2.5 log10(|flux|)];
the resulting mag range is between ~ 75 and 99.
128 r_k20fe 20mag/sq." isophotal K fiducial ell. ap. semi-major axis arcsec decimal(4,1) y 0 n n y
 Notes for r_k20fe: "Fiducial" apertures are determined for each type of total and isophotal photometry measurements as described in the GALWORKS SDS. Essentially, they are used to make mag measurements for each type of photometry with the same aperture size in all three bands. The fiducial band for the total Kron photometry and 20mag/sq." isophotal photometry is the K band, and for the 21mag/sq." isophotal photometry it is the J band.
129 j_m_k20fe J 20mag/sq." isophotal fiducial ell. ap. magnitude mag decimal(5,3) y 1 n n y
130 h_m_k20fe H 20mag/sq." isophotal fiducial ell. ap. magnitude mag decimal(5,3) y 1 n n y
131 k_m_k20fe K 20mag/sq." isophotal fiducial ell. ap. magnitude mag decimal(5,3) y 1 n n y
132 j_msig_k20fe J 1-sigma uncertainty in 20mag/sq." iso.fid.ell.mag mag decimal(4,3) y 0 n n y
133 h_msig_k20fe H 1-sigma uncertainty in 20mag/sq." iso.fid.ell.mag mag decimal(4,3) y 0 n n y
134 k_msig_k20fe K 1-sigma uncertainty in 20mag/sq." iso.fid.ell.mag mag decimal(4,3) y 0 n n y
135 j_flg_k20fe J confusion flag for 20mag/sq." iso. fid. ell. mag --- smallint y 0 n n y
 Notes for j_flg_k20fe: The confusion flags [jhk]_flg* for each mag are defined as follows:
0 if no other sources within aperture used
1 if ap contained pixels masked off in coadd
2 if ap contained pixels masked off due to neighboring sources
3 if ap contained pixels that had a point source flux subtracted off
4 if ap contained pixels within bright star mask
5 if ap contained pixels masked off due to persistence
6 if aperture ran into coadd boundary
7 if ap contained pixels within bright galaxy mask
9 if integrated flux is negative
If the integrated flux is negative, a mag value is calculated using
    BFMag = 99.0 - [ZERO_CAL - 2.5 log10(|flux|)];
the resulting mag range is between ~ 75 and 99.
136 h_flg_k20fe H confusion flag for 20mag/sq." iso. fid. ell. mag --- smallint y 0 n n y
 Notes for h_flg_k20fe: The confusion flags [jhk]_flg* for each mag are defined as follows:
0 if no other sources within aperture used
1 if ap contained pixels masked off in coadd
2 if ap contained pixels masked off due to neighboring sources
3 if ap contained pixels that had a point source flux subtracted off
4 if ap contained pixels within bright star mask
5 if ap contained pixels masked off due to persistence
6 if aperture ran into coadd boundary
7 if ap contained pixels within bright galaxy mask
9 if integrated flux is negative
If the integrated flux is negative, a mag value is calculated using
    BFMag = 99.0 - [ZERO_CAL - 2.5 log10(|flux|)];
the resulting mag range is between ~ 75 and 99.
137 k_flg_k20fe K confusion flag for 20mag/sq." iso. fid. ell. mag --- smallint y 0 n n y
 Notes for k_flg_k20fe: The confusion flags [jhk]_flg* for each mag are defined as follows:
0 if no other sources within aperture used
1 if ap contained pixels masked off in coadd
2 if ap contained pixels masked off due to neighboring sources
3 if ap contained pixels that had a point source flux subtracted off
4 if ap contained pixels within bright star mask
5 if ap contained pixels masked off due to persistence
6 if aperture ran into coadd boundary
7 if ap contained pixels within bright galaxy mask
9 if integrated flux is negative
If the integrated flux is negative, a mag value is calculated using
    BFMag = 99.0 - [ZERO_CAL - 2.5 log10(|flux|)];
the resulting mag range is between ~ 75 and 99.
138 j_r_i20c J 20mag/sq." isophotal circular aperture radius arcsec decimal(4,1) y 0 n n n
139 h_r_i20c H 20mag/sq." isophotal circular aperture radius arcsec decimal(4,1) y 0 n n n
140 k_r_i20c K 20mag/sq." isophotal circular aperture radius arcsec decimal(4,1) y 0 n n n
141 j_m_i20c J 20mag/sq." isophotal circular ap. magnitude mag decimal(5,3) y 0 n n n
142 h_m_i20c H 20mag/sq." isophotal circular ap. magnitude mag decimal(5,3) y 0 n n n
143 k_m_i20c K 20mag/sq." isophotal circular ap. magnitude mag decimal(5,3) y 0 n n n
144 j_msig_i20c J 1-sigma uncertainty in 20mag/sq." iso. circ. mag mag decimal(4,3) y 0 n n n
145 h_msig_i20c H 1-sigma uncertainty in 20mag/sq." iso. circ. mag mag decimal(4,3) y 0 n n n
146 k_msig_i20c K 1-sigma uncertainty in 20mag/sq." iso. circ. mag mag decimal(4,3) y 0 n n n
147 j_flg_i20c J confusion flag for 20mag/sq." iso. circ. mag --- smallint y 0 n n n
 Notes for j_flg_i20c: The confusion flags [jhk]_flg* for each mag are defined as follows:
0 if no other sources within aperture used
1 if ap contained pixels masked off in coadd
2 if ap contained pixels masked off due to neighboring sources
3 if ap contained pixels that had a point source flux subtracted off
4 if ap contained pixels within bright star mask
5 if ap contained pixels masked off due to persistence
6 if aperture ran into coadd boundary
7 if ap contained pixels within bright galaxy mask
9 if integrated flux is negative
If the integrated flux is negative, a mag value is calculated using
    BFMag = 99.0 - [ZERO_CAL - 2.5 log10(|flux|)];
the resulting mag range is between ~ 75 and 99.
148 h_flg_i20c H confusion flag for 20mag/sq." iso. circ. mag --- smallint y 0 n n n
 Notes for h_flg_i20c: The confusion flags [jhk]_flg* for each mag are defined as follows:
0 if no other sources within aperture used
1 if ap contained pixels masked off in coadd
2 if ap contained pixels masked off due to neighboring sources
3 if ap contained pixels that had a point source flux subtracted off
4 if ap contained pixels within bright star mask
5 if ap contained pixels masked off due to persistence
6 if aperture ran into coadd boundary
7 if ap contained pixels within bright galaxy mask
9 if integrated flux is negative
If the integrated flux is negative, a mag value is calculated using
    BFMag = 99.0 - [ZERO_CAL - 2.5 log10(|flux|)];
the resulting mag range is between ~ 75 and 99.
149 k_flg_i20c K confusion flag for 20mag/sq." iso. circ. mag --- smallint y 0 n n n
 Notes for k_flg_i20c: The confusion flags [jhk]_flg* for each mag are defined as follows:
0 if no other sources within aperture used
1 if ap contained pixels masked off in coadd
2 if ap contained pixels masked off due to neighboring sources
3 if ap contained pixels that had a point source flux subtracted off
4 if ap contained pixels within bright star mask
5