MARS03/04 (Third and Fourth Experiment on Mars PathFinder) 1997 July 4-6 Notes prepared by Nancy Vandenberg, NVI/GSFC Schedule file: mars03.skd, mars04.skd on CDDIS in [vlbidata.misc] Nominal Start: 21:00 U.T. on July 4 (day 185) first observation at 20:45 U.T. on 1219+044 21:00 U.T. on July 5 (day 186) first observation at 20:45 U.T. on 1219+044 Duration: 9 hours Nominal Stop: 05:30 U.T. on July 5 (day 186) last observation at 05:30 U.T. on M186-06 06:30 U.T. on July 6 (day 187) last observation at 06:23 U.T. on M187-06 Correlator: Haystack Station Codes # of tapes # of obs Occupation Code Gilcreek Gc 2.0,2.2 (HD) 46,52 40476601 Kokee Kk 2.0,2.2 (HD) 46,52 72983001 Green Bank 20m Gn 0.8,0.8 (TT) 53,53 72484701 DSS15 15 1.0,1.0 (TT) 64,70 72318701 Algonquin Ap 2.0,2.0 (HD) 47,47 72828201 Wettzell Wz 0.1,0.1 (HD) 9, 9 72247801 Effelsberg Ef 0.1 (HD) 9 72037901 (the # of tapes and # of obs are listed for MARS03, then MARS04) Purpose ======= The purpose of this experiment is to observe the Mars Pathfinder (MPF) spacecraft immediately after its landing on Mars. These two experiments cover the first two tranmission periods from the spacecraft. The scientific purposes of these experiments were discussed in the recent e-mail message from Marshall Eubanks. Schedule ======== This is a new schedule created by N. Vandenberg with suggestions from Marshall Eubanks. We do not know the exact times the spacecraft will be transmitting, so the schedule simply alternates between MPF and the two quasars 1219+044 and 1226-028. The pattern is: 1219+044 196 seconds MPF 588 seconds 1226-028 392 seconds MPF 392 seconds Each pair of scans fills one pass on a high density tape recorded at normal speed. The scans are relatively long because MPF's signal will be quite weak and the quasar 1226-028 is only about 0.1 Jy. There is no early start in this schedule. The positions in the schedule for MPF are named "Mddd-hh" to indicate the day and hour of the position. For example, the July 5 position at 0400 UT is "M186-04". The positions change about 30 arcsec each hour. The positions were obtained from Frank LeMoine's calculations and are assumed to be J2000 frame and epoch, based on the experience of the previous two experiments. The positions in the schedules also agree with the ephemeris provided by Bruce Schupler. Special Notes for DSS15 ======================= DSS15 will be recording data with the VLBI system at Goldstone, but the antenna will of course only be tracking MPF and not the quasars. The Field System pointing interface will not be enabled during these observations, so we will get whatever signal is piped into the VLBI rack. It is hoped that the added sensitivity from DSS15 on the MPF observations will enhance the results. Special Notes for Green Bank and Wettzell ========================================= The intensive schedules for July 4 and July 5 (part 1 only) have been merged into MARS03 and MARS04, respectively. Part 2 of the July 5 intensive has been cancelled because it conflicts with the Mars observations. The observations were shifted to use a normal length tape. Also, a few observations had to be shifted by 15 or 20 seconds due to the different placement of observations on the tape. The "NW" frequency sequence is used for the intensive part of the schedule, and an "SX" sequence is used for the Mars part. If you use DRUDG to make the procedures you will get both sets of setup procedures in the same file. The time gap between the end of the intensive and the start of the Mars observations is about 2 hours. The tape will be positioned to the start of a pass and left there at the end of the intensive part, and the Mars part should just start up when the time comes. Procedures ========== The schedules were made with the normal parity checks and setup procedures. You will be able to DRUDG the schedules locally. Please make procedure files using DRUDG so that you get the correct frequency sequence. The code for the sequence is "SX", but it is NOT the standard sequence. The sequence was designed to cover the possible downlink frequencies from the spacecraft. This is a normal width, 360 MHz sequence, not wideband. The observations will be made in Mode A, single speed. The sky frequencies and BBC/VC frequencies are in the following table. Fairbanks Kokee, Algonquin, DSS15 Effelsberg Green Bank Wettzell LO=7600.10 X 7600.0 X 8080.0 X 8100.0 X 8110.0 X 1540.10 S 1500.0 S 2020.0 S 2000.0 S 2100.0 S Chan Sky BBC BC 1 X 8212.99 612.89 612.99 132.99 112.99 102.99 2 X 8222.99 622.89 622.99 142.99 122.99 112.99 3 X 8416.99 816.89 816.99 336.99 316.99 306.99 4 X 8421.99 821.89 821.99 341.99 321.99 311.99 5 X 8425.99 825.89 825.99 345.99 325.99 315.99 6 X 8428.99 828.89 828.99 348.99 328.99 318.99 7 X 8542.99 942.89 942.99 462.99 442.99 432.99 8 X 8572.99 972.89 972.99 492.99 472.99 462.99 9 S 2217.99 677.89 717.99 197.99 217.99 117.99 10 S 2222.99 682.89 722.99 202.99 222.99 122.99 11 S 2237.99 697.89 737.99 217.99 237.99 137.99 12 S 2267.99 727.89 767.99 247.99 267.99 167.99 13 S 2292.99 752.89 792.99 272.99 292.99 192.99 14 S 2302.99 762.89 802.99 282.99 302.99 202.99 It is expected that you will not be able to see the MPF signal in total power. Correlation =========== This experiment will be correlated at Haystack. Please ship the tapes as soon as possible after the experiment. Summary ======= The following listing is a summary of the observations in this schedule. SKED Summary from file ./mars03.skd for experiment MARS03 (all scans with at least one subnet station) SOURCE |0 6 12 18 | #SCANS #OBS #Obs/bl 1219+044Ixxxxxxxx xx xxxxx xI 16 124 12.6 1226-028Ixxx xxxxxxx xxxxxxI 16 121 13.6 M185-21 I xx I 3 30 3.3 M185-22 I xx I 4 22 2.5 M185-23 I xxxI 4 33 3.7 M186-00 Ixx xI 3 26 2.9 M186-01 I xx I 3 30 3.4 M186-02 I xx I 4 33 3.7 M186-03 I xx I 3 30 3.4 M186-04 I xx I 4 18 2.0 M186-05 I xx I 3 9 1.0 M186-06 I x I 1 3 .3 Total scans, obs: 84 499 ============================================================================ Observation listing from file ./mars03.skd for experiment MARS03 Source Start AZ EL AZ EL AZ EL AZ EL AZ EL AZ EL AZ EL name yyddd-hhmmss Ap 15 Eb Gc Kk Gn Wz 1219+044 97185-204500| 139 41| 99 20| 244 24| | | 132 45| 250 21| M185-21 97185-205009| 143 34| 105 15| 240 18| | | 137 39| 245 15| 1226-028 97185-210056| 146 35| 107 17| 242 17| | | 140 40| 247 14| M185-21 97185-210921| 148 36| 108 19| 244 15| | | 143 42| 249 12| 1219+044 97185-211746| 149 44| 104 26| 251 19| | | 142 49| 257 16| M185-21 97185-212255| 152 37| 110 22| 247 14| | | 147 43| 252 10| 1226-028 97185-213512| 156 38| 112 24| 249 12| | | 151 44| 254 8| M185-22 97185-214337| 159 39| 114 26| 251 10| | | 154 45| 256 7| 1219+044 97185-215203| 161 46| 111 33| 258 14| | | 155 53| 263 10| M185-22 97185-215712| 163 39| 117 28| 254 8| | | 158 46| | 1226-028 97185-220759| 166 40| 119 30| | | | 162 47| | M185-22 97185-221624| 169 40| 121 32| | | | 165 47| | 1219+044 97185-222449| 173 48| 117 39| | | | 169 55| | M185-22 97185-222958| 174 41| 124 34| | | | 170 48| | 1226-028 97185-224139| 177 40| 126 35| | | | 174 48| | M185-23 97185-225004| 180 41| 128 37| | | | 178 48| | 1219+044 97185-225828| 185 48| 126 45| | 110 14| 90 13| 183 55| | M185-23 97185-230439| 185 41| 132 39| | 113 7| 97 10| 183 48| | 1226-028 97185-231526| 188 40| 135 41| | 116 8| 98 12| 187 48| | M185-23 97185-232351| 192 40| 137 42| | 118 9| 99 15| 191 48| | 1219+044 97185-233216| 198 46| 135 50| | 118 17| 94 20| 198 54| | M185-23 97185-233725| 196 39| 141 44| | 121 10| 100 18| 196 47| | 1226-028 97185-234812| 199 39| 144 45| | 123 11| 102 20| 199 46| | M186-00 97185-235637| 202 38| 147 46| | 126 12| 103 22| 202 46| | 1219+044 97186-000408| | 147 54| | 126 20| 97 28| 211 51| | M186-00 97186-001051| | 152 48| | 129 13| 104 25| 207 45| | 1226-028 97186-002232| 209 36| 156 48| | 132 14| 106 27| 210 43| | M186-00 97186-003057| 212 36| 159 49| | 134 15| 107 30| 214 43| | 1219+044 97186-003913| 220 41| 161 57| | 135 22| 101 36| 223 47| | M186-01 97186-004422| 216 34| 164 50| | 137 16| 109 33| 218 41| | 1226-028 97186-005509| 218 33| 168 50| | 140 16| 110 35| 220 40| | M186-01 97186-010334| 221 32| 172 51| | 142 17| 112 37| 223 39| | 1219+044 97186-011159| 229 37| 177 58| | 144 25| 106 43| 232 42| | M186-01 97186-011708| 225 30| 177 51| | 146 18| 114 40| 227 37| | 1226-028 97186-012755| 227 29| 181 51| | 148 18| 116 42| 229 35| | M186-02 97186-013620| 229 28| 185 51| | 151 19| 118 44| 231 34| | 1219+044 97186-014431| 237 32| 192 58| | 153 26| 111 50| 240 37| | M186-02 97186-015114| 233 26| 191 51| | 155 20| 121 47| 235 31| | 1226-028 97186-020255| 235 24| 195 50| | 157 20| 123 49| 237 30| | M186-02 97186-021120| 237 23| 199 50| | 160 20| 126 51| 239 28| | 1219+044 97186-021929| 245 27| 208 55| | | | 248 31| | M186-02 97186-022438| 240 21| 204 49| | | | 242 26| | 1226-028 97186-023525| 242 19| 207 47| | 166 21| 133 55| 244 24| | M186-03 97186-024350| 244 18| 210 47| | 169 21| 136 56| 246 22| | 1219+044 97186-025215| 252 21| 220 51| | 172 29| 131 64| 254 25| | M186-03 97186-025724| 247 16| 215 45| | 172 21| 141 58| 248 20| | 1226-028 97186-030811| 249 14| 218 44| | 175 21| 145 60| 250 18| | M186-03 97186-031636| 251 13| 221 43| | 177 22| 149 61| 252 16| | 1219+044 97186-032442| 258 16| 230 47| | 181 29| 147 69| 259 19| | M186-04 97186-033125| | 225 41| | 181 22| 156 62| 254 14| | 1226-028 97186-034306| | 227 39| | 184 21| 162 63| 256 12| | M186-04 97186-035131| | 230 38| | 187 21| 167 64| 257 10| | 1219+044 97186-035902| | 239 41| | 191 28| 172 71| 265 12| | M186-04 97186-040411| | 233 36| | 190 21| 174 64| | | 1226-028 97186-041458| | 235 34| | 193 21| 180 64| | | M186-04 97186-042323| | 237 32| | 195 21| 186 64| | | 1219+044 97186-043148| | 246 35| | 200 27| 198 71| | | M186-05 97186-043657| | 240 30| | 199 20| 193 64| | | 1226-028 97186-044744| | 242 28| | 201 20| 199 63| | | M186-05 97186-045609| | 244 27| | 204 20| 204 62| | | 1219+044 97186-050340| | 252 29| | 209 26| 219 67| | | M186-05 97186-051023| | 247 24| | 208 19| 210 61| | | 1226-028 97186-052204| | 248 22| | 210 18| 215 59| | | M186-06 97186-053029| | 250 20| | 213 18| 219 58| | | End of listing. ============================================================================ SKED Summary from file ./mars04.skd for experiment MARS04 (all scans with at least one subnet station) SOURCE |0 6 12 18 | #SCANS #OBS #Obs/bl 1219+044Ixxxxxxxx xxxx xxxxx xI 18 118 16.7 1226-028Ixxx xxxxxxx x xxxxxxI 17 116 18.3 M186-21 I xx I 3 18 2.8 M186-22 I xx I 4 15 2.3 M186-23 I xxxI 4 33 5.2 M187-00 Ixx xI 3 26 4.1 M187-01 I xx I 3 30 4.8 M187-02 I xx I 4 33 5.2 M187-03 I xx I 3 30 4.8 M187-04 I xx I 4 18 2.8 M187-05 I xx I 3 9 1.4 M187-06 I xx I 4 12 1.9 Total scans, obs: 90 478 ============================================================================ Observation listing from file ./mars04.skd for experiment MARS04 Source Start AZ EL AZ EL AZ EL AZ EL AZ EL AZ EL name yyddd-hhmmss Ap 15 Gc Kk Gn Wz 1219+044 97186-204500| 140 41| 100 20| | | 133 46| 251 20| M186-21 97186-205009| 144 34| 105 16| | | 138 39| 246 15| 1226-028 97186-210056| 147 35| 107 18| | | 141 41| 248 13| M186-21 97186-210921| 149 36| 109 19| | | 144 42| 250 12| 1219+044 97186-211746| 150 44| 105 27| | | 144 50| 257 15| M186-21 97186-212255| 153 37| 111 22| | | 148 43| 252 10| 1226-028 97186-213512| 157 38| 113 24| | | 152 44| 255 8| M186-22 97186-214337| 159 39| 115 26| | | 155 45| 256 7| 1219+044 97186-215203| 162 47| 111 34| | | 156 53| 264 10| M186-22 97186-215712| 164 39| 117 28| | | 159 46| | 1226-028 97186-220759| 167 40| 120 30| | | 163 47| | M186-22 97186-221624| 170 40| 121 32| | | 166 47| | 1219+044 97186-222449| 174 48| 118 40| | | 170 55| | M186-22 97186-222958| 174 40| 124 34| | | 171 48| | 1226-028 97186-224139| 178 40| 127 36| | | 176 48| | M186-23 97186-225004| 181 40| 129 37| | | 179 48| | 1219+044 97186-225828| 187 48| 127 45| 111 14| 91 13| 185 55| | M186-23 97186-230439| 186 40| 133 40| 114 7| 97 11| 184 48| | 1226-028 97186-231526| 190 40| 136 41| 117 8| 99 13| 188 48| | M186-23 97186-232351| 192 40| 138 42| 119 9| 99 15| 191 47| | 1219+044 97186-233216| 199 46| 137 50| 119 17| 94 21| 200 54| | M186-23 97186-233725| 197 39| 142 44| 122 10| 101 18| 196 47| | 1226-028 97186-234812| 200 39| 145 45| 124 11| 102 21| 200 46| | M187-00 97186-235637| 203 38| 148 46| 126 12| 103 22| 203 45| | 1219+044 97187-000408| | 148 54| 127 20| 97 29| 212 51| | M187-00 97187-001051| | 153 48| 130 13| 105 26| 208 44| | 1226-028 97187-002232| 210 36| 157 49| 133 14| 106 28| 212 43| | M187-00 97187-003057| 213 35| 160 49| 135 15| 107 30| 214 42| | 1219+044 97187-003913| 221 40| 163 57| 136 23| 102 37| 224 47| | M187-01 97187-004422| 216 34| 165 50| 138 16| 109 33| 218 41| | 1226-028 97187-005509| 220 33| 170 51| 141 16| 111 35| 221 39| | M187-01 97187-010334| 222 32| 173 51| 143 17| 112 37| 223 38| | 1219+044 97187-011159| 230 36| 179 58| 145 25| 106 44| 233 42| | M187-01 97187-011708| 225 30| 178 51| 146 18| 115 40| 227 36| | 1226-028 97187-012755| 228 29| 183 51| 149 18| 117 42| 230 35| | M187-02 97187-013620| 230 28| 186 51| 151 19| 118 44| 232 33| | 1219+044 97187-014431| 238 31| 194 57| 154 27| 112 51| 241 36| | M187-02 97187-015114| 233 26| 192 50| 155 19| 121 47| 235 31| | 1226-028 97187-020255| 236 24| 197 50| 158 20| 124 49| 238 29| | M187-02 97187-021120| 238 23| 199 49| 160 20| 126 51| 239 28| | 1219+044 97187-021929| 246 26| 209 55| | | 248 30| | M187-02 97187-022438| 241 21| 204 48| | | 242 25| | 1226-028 97187-023525| 243 19| 208 47| 167 21| 134 55| 244 23| | M187-03 97187-024350| 245 18| 211 46| 169 21| 137 56| 246 22| | 1219+044 97187-025215| 253 21| 221 51| 173 29| 133 64| 255 24| | M187-03 97187-025724| 247 15| 215 45| 173 21| 142 59| 248 19| | 1226-028 97187-030811| 250 14| 219 43| 176 21| 146 60| 250 17| | M187-03 97187-031636| 251 12| 221 42| 178 21| 150 61| 252 16| | 1219+044 97187-032442| 259 15| 231 46| 182 29| 150 69| 260 18| | M187-04 97187-033125| | 225 40| 182 21| 157 62| 254 13| | 1226-028 97187-034306| | 228 38| 185 21| 164 63| 256 11| | M187-04 97187-035131| | 230 37| 187 21| 168 64| 258 9| | 1219+044 97187-035902| | 240 40| 192 28| 175 72| 266 11| | M187-04 97187-040411| | 233 35| 191 21| 175 64| | | 1226-028 97187-041458| | 236 33| 194 21| 182 64| | | M187-04 97187-042323| | 238 32| 196 21| 187 64| | | 1219+044 97187-043148| | 247 34| 201 27| 201 70| | | M187-05 97187-043657| | 240 29| 199 20| 194 63| | | 1226-028 97187-044744| | 243 27| 202 20| 201 63| | | M187-05 97187-045609| | 244 26| 204 19| 204 62| | | 1219+044 97187-050340| | 253 28| 210 26| 221 67| | | M187-05 97187-051023| | 247 23| 208 19| 211 60| | | 1226-028 97187-052204| | 249 21| 211 18| 217 59| | | M187-06 97187-053029| | 250 20| 213 17| 220 58| | | 1219+044 97187-053800| | 259 21| 219 24| 235 61| | | M187-06 97187-054309| | 252 17| 217 17| 224 56| | | 1226-028 97187-060056| | 255 13| 221 16| 230 53| | | M187-06 97187-060921| | 257 12| 223 15| 232 51| | | 1219+044 97187-061746| | 265 13| 229 21| 246 52| | | M187-06 97187-062255| | 259 9| 226 14| 236 49| | | ============================================================================