<=== observer ===> "TDEGRAAU",\ "de Graauw, Th",\ "",\ "SRON Groningen",\ "",\ "P.O. Box 800",\ "9700 AV",\ "Groningen",\ "The Netherlands",\ "31 50 634074",\ "31 50 634033",\ "thijsdg@sron.rug.nl" <=== proposal ===> "MARS",1,1,\ {"planets"},\ {"LWS team:","Ade, P A R","Calcutt C","Davis, G R",\ "Gautier, D","Griffin, M J",\ "Naylor, D","Orton, G S",\ "SWS team:","de Graauw, Th",\ "THE team:","Lellouch, E","Encrenaz, Th","Crovisier, J",\ "SOT Team:","Salama, A","Leech K"} <=== title ===> ISO Observations of Mars <=== abstract ===> SCIENTIFIC ABSTRACT We propose to make spectroscopic observations of Mars using all of the ISO instruments. The main scientific goals are: - To characterise the shape and variability of the Martian FIR continuum spectrum. This will characterise large-scale seasonal and topographic variations of the thermo-physical properies (albedo and thermal inertia) of the surface. - To determine the absolute FIR brightness temperature spectrum of Mars, and its dependence on the Martian season, phase angle and atmospheric dust content. - To make complete spectral surveys using the SWS and LWS. This will allow the determination of the concentrations of the most important atmospheric species, and will establish a chemical inventory of the atmospheric composition. OBSERVATIONS SUMMARY A full discussion of the scientific case is give in the CP programmes of the LWS Solar System SAG and the Mission Scientists. The following is a summary of the astronomical objectives of each of the observations tabulated below. The expected S/N is typically several hundred. Obs. Seq. Nos. Description ------------------ ----------------------------------------- 1,3,5,7,9,11,17,22 Full LWS grating scans to be made at eight different epochs during the mission 2,4,6,8,10,12,18,23 Eight PHOT-S scans to be carried out at the same time the LWS scans 13 One LWS full FP scan 14,15,16 These comprise one SWS full grating scan (Priority 1) 19,20,21 A second SWS full grating scan (Priority 2) 24 CAM CVF scan 2.5-11.5 um <=== scientific_justification ===> As recommended in the CP Proposal Instructions, the scientific case is not included here. The following is a breakdown of the contributions of the various consortia (spacecraft time in seconds). Note that, since the priorities within the Solar system CP have been set over the programme as a whole, the nominal 40:30:30 distribution is not precisely adhered to by each proposal individually. In this proposal, for instance, 25% of the observations are first priority. Nomimnal : Top 40% Second 30% Last 30% Actual : Top 25% Second 62% Third 13% Total LWS Team : 610 4760 1822 7102 SWS Team : 8511 3471 282 12264 THE Team : 0 14927 2692 17619 SOT Team : 0 0 0 0 Overall Total: 9121 23068 4796 36985 Note: There are special scheduling requirements for this programme: The LWS full grating scans and PHOT-S scans are required to be taken at different times during the mission, ideally at intervals of about two months; however, the exact timing will depend on the observability of Mars. The CAM observation should be scheduled when Mars is as close as possible to the Earth. <=== autumn_launch_targets ===> 1,"LWS01",2.0,"Y","Mars 200400", 0.,0.,2000,0.,0., 770, 2 2,"PHT40",2.0,"Y","Mars 200400", 0.,0.,2000,0.,0., 141, 0 3,"LWS01",2.0,"Y","Mars 200400", 0.,0.,2000,0.,0., 770, 4 4,"PHT40",2.0,"Y","Mars 200400", 0.,0.,2000,0.,0., 141, 0 5,"LWS01",3.0,"Y","Mars 200400", 0.,0.,2000,0.,0., 770, 6 6,"PHT40",3.0,"Y","Mars 200400", 0.,0.,2000,0.,0., 141, 0 7,"LWS01",3.0,"Y","Mars 200400", 0.,0.,2000,0.,0., 770, 8 8,"PHT40",3.0,"Y","Mars 200400", 0.,0.,2000,0.,0., 141, 0 9,"LWS01",3.0,"Y","Mars 200400", 0.,0.,2000,0.,0., 770, 0 10,"PHT40",3.0,"Y","Mars 200400", 0.,0.,2000,0.,0., 141, 0 11,"LWS01",3.0,"Y","Mars 200400", 0.,0.,2000,0.,0., 770, 0 12,"PHT40",3.0,"Y","Mars 200400", 0.,0.,2000,0.,0., 141, 0 13,"LWS03",2.0,"Y","Mars 200400", 0.,0.,2000,0.,0.,12125, 0 14,"SWS06",1.0,"Y","Mars 200400", 0.,0.,2000,0.,0., 1862,15 15,"SWS06",1.0,"Y","Mars 200400", 0.,0.,2000,0.,0., 3922,16 16,"SWS06",1.0,"Y","Mars 200400", 0.,0.,2000,0.,0., 2586,17 17,"LWS01",1.0,"Y","Mars 200400", 0.,0.,2000,0.,0., 610,18 18,"PHT40",1.0,"Y","Mars 200400", 0.,0.,2000,0.,0., 141, 0 19,"SWS06",2.0,"Y","Mars 200400", 0.,0.,2000,0.,0., 1862,20 20,"SWS06",2.0,"Y","Mars 200400", 0.,0.,2000,0.,0., 3922,21 21,"SWS06",2.0,"Y","Mars 200400", 0.,0.,2000,0.,0., 2586,22 22,"LWS01",2.0,"Y","Mars 200400", 0.,0.,2000,0.,0., 610,23 23,"PHT40",2.0,"Y","Mars 200400", 0.,0.,2000,0.,0., 141, 0 24,"CAM04",2.0,"Y","Mars 200400", 0.,0.,2000,0.,0., 1152, 0 <=== spring_launch_targets ===> 1,"LWS01",2.0,"Y","Mars 200400", 0.,0.,2000,0.,0., 770, 2 2,"PHT40",2.0,"Y","Mars 200400", 0.,0.,2000,0.,0., 141, 0 3,"LWS01",2.0,"Y","Mars 200400", 0.,0.,2000,0.,0., 770, 4 4,"PHT40",2.0,"Y","Mars 200400", 0.,0.,2000,0.,0., 141, 0 5,"LWS01",3.0,"Y","Mars 200400", 0.,0.,2000,0.,0., 770, 6 6,"PHT40",3.0,"Y","Mars 200400", 0.,0.,2000,0.,0., 141, 0 7,"LWS01",3.0,"Y","Mars 200400", 0.,0.,2000,0.,0., 770, 8 8,"PHT40",3.0,"Y","Mars 200400", 0.,0.,2000,0.,0., 141, 0 9,"LWS01",3.0,"Y","Mars 200400", 0.,0.,2000,0.,0., 770, 0 10,"PHT40",3.0,"Y","Mars 200400", 0.,0.,2000,0.,0., 141, 0 11,"LWS01",3.0,"Y","Mars 200400", 0.,0.,2000,0.,0., 770, 0 12,"PHT40",3.0,"Y","Mars 200400", 0.,0.,2000,0.,0., 141, 0 13,"LWS03",2.0,"Y","Mars 200400", 0.,0.,2000,0.,0.,12125, 0 14,"SWS06",1.0,"Y","Mars 200400", 0.,0.,2000,0.,0., 1862,15 15,"SWS06",1.0,"Y","Mars 200400", 0.,0.,2000,0.,0., 3922,16 16,"SWS06",1.0,"Y","Mars 200400", 0.,0.,2000,0.,0., 2586,17 17,"LWS01",1.0,"Y","Mars 200400", 0.,0.,2000,0.,0., 610,18 18,"PHT40",1.0,"Y","Mars 200400", 0.,0.,2000,0.,0., 141, 0 19,"SWS06",2.0,"Y","Mars 200400", 0.,0.,2000,0.,0., 1862,20 20,"SWS06",2.0,"Y","Mars 200400", 0.,0.,2000,0.,0., 3922,21 21,"SWS06",2.0,"Y","Mars 200400", 0.,0.,2000,0.,0., 2586,22 22,"LWS01",2.0,"Y","Mars 200400", 0.,0.,2000,0.,0., 610,23 23,"PHT40",2.0,"Y","Mars 200400", 0.,0.,2000,0.,0., 141, 0 24,"CAM04",2.0,"Y","Mars 200400", 0.,0.,2000,0.,0., 1152, 0