C1 MAR9_IRS.TAB 1987MAY06MC2 Explanation of Mariner 9 IRIS Reduced Data Records (RDR) for record type 7NC3 (CALIBRATED MARTIAN SPECTRUM). All temperatures are in Kelvin. All angles4C4 are in degrees. All distances are in kilometers.1C5 Items 25-28 replace original unused locations.* 100/ IFNUM = number of ancillary fields< 1600/ MFNUM = total # fields (record length in R*4 words) 397/ NBYTE = byte offset3 1/ KAL = calibration state (1=calibrated energy)< 'MARINER 9 IRIS'/ INSTID = instrument identification string7 1/ KWAVET = spectral dispersion type (1=wave number)& 1/ IDTYP = detector type (1=Energy); 1.E-4/ RSCAL = radiance scaling factor to meters squared: 1/ NSEGS = # of spectral segments of uniform dispersion9 1500/ KNSEGS() = number of spectral points per segmentF 199.7/ WAVE1() = wave of 1st spectral point for each segmentB 1.175/ WAVED() = delta wave for spectral points in each segment/ 8/ KLAT = field position of central latitude0 9/ KLON = field position of central longitude/ 40/ KINC = field position of incidence angle/ 42/ KEMIS = field position of emission angle- 41/ KPHASE = field position of phase angle. 43/ KRANGE = field position of target range1 77/ KHOUR = field position of local solar time1 -1/ KBODY = field position of target body code- 78/ KQUAL = field position of quality code8 35/ KSLEW = field position of slew (-1=not available)9 3/ KID = field position of spectral id (not available) 2/ KORBIT = orbit number> 25/ KWORD = field position of 1st of 4 spectral descriptors!C6 F# FMT BYTE NAME DESCRIPTION!C7 -- --- ---- ------ -----------' 1 R4 1 Type Record type (7.0)" 2 R4 5 Orbit Orbit number2 3 R4 9 Spec.# Spectrum number on this tape3 4 R4 13 ERT_Da Earth Receipt time (GMT); day4 5 R4 17 ERT_Hr Earth Receipt time (GMT); hour6 6 R4 21 ERT_Mn Earth Receipt time (GMT); minute? 7 R4 25 ERT_Se Earth Receipt time (GMT); second (to 0.1)@ 8 R4 29 LATP5 Latitude point 5 (center of field of view)2 9 R4 33 LONP5 Longitude point 5 (0 to 360)" 10 R4 37 Spare Spare (=0.0)4 11 R4 41 BolomT Bolometer Temp.; average. ~2526 12 R4 45 Bol.T2 Bolometer Temp.; redundant. ==0.6 13 R4 49 BB.TA Blackbody Temp.; average. ~296.55 14 R4 53 BB.T2 Blackbody Temp.; redundant ==0./ 15 R4 57 BeamT Beamsplitter Temp. ~=248.( 16 R4 61 MotorT Motor Temp. ~=248.6 17 R4 65 Mirr.T Calibration Mirror: Temp. ~=251.4 18 R4 69 R.S.T. Radiating Surface Temp. ~=247.; 19 R4 73 OBS_Yr Measurement Time (GMT); year spaced8 20 R4 77 OBS_Da Measurement Time (GMT); day by 8 21 R4 81 OBS_Hr Measurement Time (GMT); hour 7.09 22 R4 85 OBS_Mn Measurement Time (GMT); minute min.4 23 R4 89 OBS_Se Measurement Time (GMT); second3 24 R4 93 TFPeri Time from periapsis (minutes)S 25 R4 97 KTYPE Compressed record type. 25-28 set by Compression program CCC= 26 R4 101 WN0 Compressed record wavenumber base value8 27 R4 105 WNDel Compressed record wavenumber delta= 28 R4 109 NSPEC Number of spectral fields in the record 29 R4 113 Spare Spare 30 R4 117 DAS DAS time) 31 R4 121 Altit. Spacecraft altitude1 32 R4 125 Clock Scan platform angles; clock0 33 R4 129 Cone Scan platform angles; coneK 34 R4 133 Twist Scan platform angles; twist ( typically < .6, to .01)? 35 R4 137 Moving Platform in-motion flag (1.0=yes, 0.0=no)G 36 R4 141 TruAnm Spacecraft true anomaly( ?? units: goes to 3400.)F 37 R4 145 TanVel Spacecraft tangential velocity (km/sec) ( to .1)A 38 R4 149 RadVel Spacecraft radial velocity (km/sec) (to .1)7 39 R4 153 TelFlg Telemetry Flag (=1.0)** 1. or 0.Q 40 R4 157 Incid5 Solar lighting; angles at center of field of view (degrees)T 41 R4 161 Phase5 Phase; angles at center of field of view (degrees) (~180-cone)J 42 R4 165 Emiss5 Viewing; angles at center of field of view (degrees)3 43 R4 169 Range5 Range to point 5 (kilometers)5 44 R4 173 Lat-1 Ten latitudes for field-of-view5 45 R4 177 Lat-2 Ten latitudes for field-of-view5 46 R4 181 Lat-3 Ten latitudes for field-of-view5 47 R4 185 Lat-4 Ten latitudes for field-of-view5 48 R4 189 Lat-5 Ten latitudes for field-of-view5 49 R4 193 Lat-6 Ten latitudes for field-of-view5 50 R4 197 Lat-7 Ten latitudes for field-of-view5 51 R4 201 Lat-8 Ten latitudes for field-of-view5 52 R4 205 Lat-9 Ten latitudes for field-of-view5 53 R4 209 Lat-10 Ten latitudes for field-of-view6 54 R4 213 Lon-1 Ten longitudes for field-of-view6 55 R4 217 Lon-2 Ten longitudes for field-of-view6 56 R4 221 Lon-3 Ten longitudes for field-of-view6 57 R4 225 Lon-4 Ten longitudes for field-of-view6 58 R4 229 Lon-5 Ten longitudes for field-of-view6 59 R4 233 Lon-6 Ten longitudes for field-of-view6 60 R4 237 Lon-7 Ten longitudes for field-of-view6 61 R4 241 Lon-8 Ten longitudes for field-of-view6 62 R4 245 Lon-9 Ten longitudes for field-of-view6 63 R4 249 Lon-10 Ten longitudes for field-of-viewP 64 R4 253 Mars5 Angle at spacecraft between P5 and center of Mars(degrees)+ 65 R4 257 SD_Mar Semi-diameter of Mars2 66 R4 261 ConeM Cone Angle of center of Mars3 67 R4 265 ClockM Clock Angle of center of Mars- 68 R4 269 RangeM Range to center of Mars) 69 R4 273 ConeP Phobos angles; cone* 70 R4 277 ClockP Phobos angles; clock( 71 R4 281 RangeP Distance to Phobos) 72 R4 285 ConeD Deimos angles; cone* 73 R4 289 ClockD Deimos angles; clock( 74 R4 293 RangeD Distance to Deimos/ 75 R4 297 Z-Lat Sub-Solar point latitude / 76 R4 301 Z-Long Sub-Solar point longitude- 77 R4 305 Hour Mars local time (hours), 78 R4 309 ScanFg Scan enabled flag ==0." 79 R4 313 Spare Spare (=0.0)" 80 R4 317 Spare Spare (=0.0)" 81 R4 321 Spare Spare (=0.0)K 82 R4 325 %_Illm Percent of Mars illuminated ( not just field of view), 83 R4 329 V-Lat Subspacecraft latitude- 84 R4 333 V-Long Subspacecraft longitude= 85 R4 337 LET-0 Evening terminator longitude at Equator9 86 R4 341 LET+45 Evening terminator longitude at 45N9 87 R4 345 LET-45 Evening terminator longitude at 45S/ 88 R4 349 LimbA Limb angle ( -=on planet)0 89 R4 353 OldLat Old pole latitude point 5 1 90 R4 357 OldLon Old pole longitude point 5 G 91 R4 361 FrMars Proportion of field-of-view filled by Mars (==1.)> 92 R4 365 Paint Paint emissivity correction applied =1.0M 93 R4 369 NavEst Navigation data estimated (1.0=yes, 0.0=no) commonly 0." 94 R4 373 Spare Spare (=0.0)" 95 R4 377 Spare Spare (=0.0)8 96 R4 381 Wave-A "A" Wave number correction =0.16198 97 R4 385 Wave-B "B" Wave number correction =.00106< 98 R4 389 Wave-1 Wave number at first mesh point =199.77 99 R4 393 WavDel Wave number mesh increment =1.1755 100 R4 397 #Pts Number of data points (=1500.0)