From owner-freja-info@plasma.kth.se Thu Apr 7 16:49 MET 1994 X-Listname: Freja Project Information mailing list Warnings-To: <> Date: Thu, 7 Apr 1994 14:38:46 GMT From: ZANETTI@AMPVX2.JHUAPL.EDU Subject: April 11 to 17 plan To: freja-info@plasma.kth.se X-Vmsmail-To: SMTP%"freja-info@plasma.kth.se" Hello from F2, SIC plan for April 11-17, 1994 The following is from a list graciously provided by Nick Lloyd. This second list does have input from FOC. I will also repeat the cancellation order from F1: 1) First ESS pass in group 2) Last PASS in group 3) Second last PASS Only one survey per day. Burst taking has been randomized somewhat and I assume F1 does the gradual trigger as before with always 20 min before LOS. The forced burst and dump are decoupled with dump always over Esrange and at LOS-8, this was neglected the first week. This does, however, cause the cited problems in the burst FSPs as pointed out by F1 for instruments using regular data for these plots, true for F2 and others. This problem can be skirted from the regular FSPs along with post-processing which is desirable given attitude, etc. corrections that have to be made. Nevertheless, from F1's Burst strategy: Burst. 2 passes/day, rotating F1, F2, F4, as usual. We continue using the "gradual" force trig, decreasing the trig level successively, starting at LOS-20min and ending at LOS-8min. We still do this only when F1 is used as trigger, and we reduce our trigger threshold in 5 steps from 0.3 Volts to 0 Volts. The operations of the F2 and F4 burst orbits are unchanged. Thus, the burst should be done in the following way: PASS AOS+5min: Enable burst ESS LOS-Xmin: Force trig. X is given below for each burst orbit. X should always be 20min for the F1 burst orbits. ESS LOS-8min: Dump burst data. Freja and it's operations will be demonstrated at the IAA International Conference on Low-Cost Planetary Missions at APL April 12-15. Larry Zanetti zanetti@jhuapl.edu 301-953-6897 301-953-6670 fax Thanks again Nick. Freja Science Plans from 1994/04/01 00:00:00 to 1994/04/30 23:59:59 using orbital elements in C:\f3c\tle\tle.363 All Universal Times are estimates for your convenience. FOC might change these values according to other parameters, like antenna change and radio silence etc. Optical observatories listed, Rabbit Lake ( 58.2N,-103.7E), Contact Don McEwen, McEwen@skisas.usask.ca Gillam ( 56.2N, 265.4E), Contact Gordon Rostoker, CANOPUS Eureka ( 80.1N, -86.4E), Contact AES Canada, et al. CASEY (-66.3N, 110.5E), Contact Australian Antarctic Division DAVIS (-68.6N, 78.0E), Contact Australian Antarctic Division MAWSON (-67.6N, 62.9E), Contact Australian Antarctic Division MACQUARIE Is (-54.5N, 158.9E), Contact Australian Antarctic Division SpyHill ( 51.0N,-114.0E), Contact Y.Sahai, sahai@phys.ucalgary.ca INPE Phot. (-22.7N, -45.0E), Contact Y.Sahai, sahai@phys.ucalgary.ca INPE Iono. ( -3.9N, -38.4E), Contact Y.Sahai, sahai@phys.ucalgary.ca ----------------------------------------------------------------------------- Monday, 1994/04/11 7292 ESS PASS High TM Burst (F2) PASS AOS +5 Arm Burst (F2) ~01:08:54 UT ESS LOS -14 Forced Trig & Dump ~01:27:30 UT 7293 ESS PASS High TM Burst (F2) PASS AOS +5 Arm Burst (F2) ~02:58:41 UT ESS LOS -16 Forced Trig & Dump ~03:13:45 UT Eureka [03:09:57-03:11:15 UT] 7294 PASS SYOWA High TM Gillam [04:53:46-05:04:06 UT] Eureka [04:58:22-05:03:52 UT] 7295 PASS High TM Rabbit Lake [06:47:47-06:54:43 UT] Gillam [06:47:39-06:58:55 UT] Eureka [06:49:18-06:54:02 UT] SpyHill [06:45:24-06:53:12 UT] 7296 PASS Low TM SpyHill [08:39:16-08:49:42 UT] 7297 PASS Low TM 7298 PASS Low TM 7299 No Data 7300 ESS No Data 7301 ESS Low TM 7302 ESS Low TM 7303 ESS High TM Survey COARSE, ORBIT Start UTC = ESS LOS, [~21:34:19 UT] End UTC = ESS AOS, [~23:03:07 UT] 7304 ESS High TM Dump Survey ----------------------------------------------------------------------------- Tuesday, 1994/04/12 7305 ESS PASS High TM Burst (F2) PASS AOS +5 Arm Burst (F2) ~00:45:20 UT ESS LOS -12 Forced Trig & Dump ~01:05:41 UT 7306 ESS PASS High TM Burst (F2) PASS AOS +5 Arm Burst (F2) ~02:34:44 UT ESS LOS -18 Forced Trig & Dump ~02:48:14 UT 7307 PASS SYOWA High TM Eureka [04:34:32-04:39:56 UT] 7308 PASS High TM Rabbit Lake [06:23:37-06:30:29 UT] Gillam [06:23:30-06:34:38 UT] Eureka [06:25:19-06:30:17 UT] SpyHill [06:21:06-06:28:54 UT] 7309 PASS Low TM SpyHill [08:15:11-08:25:16 UT] 7310 PASS Low TM 7311 PASS Low TM 7312 No Data 7313 No Data 7314 ESS Low TM 7315 ESS Low TM 7316 ESS Low TM Survey COARSE, EQUATOR Start UTC = 21:24:21 UT, [~09:23:54 LT] End UTC = 21:24:51 UT 7317 ESS High TM Dump Survey ----------------------------------------------------------------------------- Wednesday, 1994/04/13 7318 ESS PASS High TM Burst (F4) PASS AOS +5 Arm Burst (F4) ~00:21:49 UT ESS LOS -20 Forced Trig & Dump ~00:33:51 UT LSL ON: PASS AOS -- ESS LOS 7319 ESS PASS High TM Burst (F4) PASS AOS +5 Arm Burst (F4) ~02:10:49 UT ESS LOS -10 Forced Trig & Dump ~02:32:40 UT 7320 PASS SYOWA High TM Eureka [04:10:44-04:15:59 UT] 7321 PASS High TM Gillam [05:59:22-06:10:21 UT] Eureka [06:01:21-06:06:30 UT] SpyHill [05:56:48-06:04:38 UT] 7322 PASS High TM SpyHill [07:51:04-08:00:50 UT] 7323 PASS Low TM SpyHill [09:44:00-09:56:26 UT] 7324 PASS Low TM 7325 No Data 7326 No Data 7327 ESS Low TM 7328 ESS Low TM 7329 ESS Low TM 7330 ESS High TM Survey MEDIUM, EQUATOR Start UTC = 22:45:12 UT, [~09:12:54 LT] End UTC = 22:55:12 UT 7331 ESS High TM Dump Survey LSL ON: ESS AOS-15 -- LOS ----------------------------------------------------------------------------- Thursday, 1994/04/14 7332 ESS PASS High TM Burst (F4) PASS AOS +5 Arm Burst (F4) ~01:46:55 UT ESS LOS -16 Forced Trig & Dump ~02:03:05 UT 7333 ESS PASS High TM Eureka [03:46:56-03:52:01 UT] PASS AOS +5 Arm Burst (F4) ESS LOS -18 Forced Trig & Dump ~UT 7334 PASS SYOWA High TM Gillam [05:35:13-05:46:04 UT] Eureka [05:37:24-05:42:42 UT] SpyHill [05:32:29-05:40:23 UT] 7335 PASS High TM Rabbit Lake [07:28:42-07:36:36 UT] Gillam [07:28:31-07:40:47 UT] SpyHill [07:26:57-07:36:23 UT] 7336 PASS Low TM SpyHill [09:19:54-09:32:15 UT] 7337 PASS Low TM 7338 No Data 7339 No Data 7340 ESS Low TM 7341 ESS Low TM 7342 ESS Low TM 7343 ESS High TM Survey MEDIUM, EQUATOR Start UTC = 22:21:24 UT, [~08:58:33 LT] End UTC = 22:31:24 UT 7344 ESS High TM Dump Survey LSL ON: ESS AOS-15 -- LOS ----------------------------------------------------------------------------- Friday, 1994/04/15 7345 ESS PASS High TM Burst (F1) PASS AOS +5 Arm Burst (F1) ~01:23:03 UT ESS LOS -20 Forced Trig & Dump ~01:35:28 UT 7346 ESS PASS High TM Eureka [03:23:10-03:28:03 UT] PASS AOS +5 Arm Burst (F1) ESS LOS -20 Forced Trig & Dump 7347 PASS SYOWA High TM Gillam [05:11:03-05:21:47 UT] Eureka [05:13:28-05:18:53 UT] 7348 PASS High TM Rabbit Lake [07:04:36-07:12:23 UT] Gillam [07:04:24-07:16:36 UT] SpyHill [07:02:49-07:11:56 UT] 7349 PASS Low TM SpyHill [08:55:48-09:08:02 UT] 7350 PASS Low TM 7351 No Data 7352 No Data 7353 ESS Low TM 7354 ESS Low TM 7355 ESS Low TM 7356 ESS High TM Survey MEDIUM, SOUTHPOLE Start UTC = 22:25:07 UT, [~10:20:04 MLT] End UTC = 22:35:07 UT 7357 ESS High TM Dump Survey ----------------------------------------------------------------------------- Saturday, 1994/04/16 7358 ESS PASS High TM Burst (F1) PASS AOS +5 Arm Burst (F1) ~01:00:12 UT ESS LOS -20 Forced Trig & Dump ~01:11:49 UT 7359 PASS High TM Rabbit Lake [02:53:14-02:59:59 UT] Eureka [02:59:25-03:04:03 UT] PASS AOS +5 Arm Burst (F1) ESS LOS -20 Forced Trig & Dump 7360 PASS High TM Rabbit Lake [04:46:56-04:53:36 UT] Eureka [04:49:33-04:55:03 UT] 7361 PASS High TM Rabbit Lake [06:40:29-06:48:09 UT] Gillam [06:40:18-06:52:24 UT] Eureka [06:42:16-06:43:12 UT] SpyHill [06:38:41-06:47:29 UT] 7362 PASS Low TM Rabbit Lake [08:33:55-08:41:13 UT] SpyHill [08:31:43-08:43:47 UT] 7363 PASS Low TM 7364 No Data 7365 No Data 7366 ESS Low TM 7367 ESS Low TM 7368 ESS Low TM 7369 ESS High TM Survey MEDIUM, SOUTHPOLE Start UTC = 22:01:18 UT, [~10:06:44 MLT] End UTC = 22:11:18 UT 7370 ESS High TM Dump Survey ----------------------------------------------------------------------------- Sunday, 1994/04/17 7371 ESS PASS High TM Burst (F2) PASS AOS +5 Arm Burst (F2) ~00:35:23 UT ESS LOS -20 Forced Trig & Dump ~00:48:08 UT 7372 PASS High TM Rabbit Lake [02:29:11-02:35:51 UT] Eureka [02:35:41-02:40:01 UT] PASS AOS +5 Arm Burst (F2) ESS LOS -20 Forced Trig & Dump 7373 PASS High TM Rabbit Lake [04:22:45-04:29:24 UT] Eureka [04:25:39-04:31:12 UT] 7374 PASS High TM Rabbit Lake [06:16:22-06:23:55 UT] Gillam [06:16:11-06:28:10 UT] Eureka [06:17:45-06:20:01 UT] SpyHill [06:14:31-06:23:03 UT] 7375 PASS Low TM Rabbit Lake [08:09:42-08:17:17 UT] SpyHill [08:07:38-08:19:30 UT] 7376 PASS Low TM 7377 PASS No Data 7378 No Data 7379 ESS Low TM 7380 ESS Low TM 7381 ESS Low TM 7382 ESS High TM Survey COARSE, ORBIT Start UTC = ESS LOS, [~21:02:32 UT] End UTC = ESS AOS, [~22:31:07 UT] 7383 ESS High TM Dump Survey