From freja-info-mgr@plasma.kth.se Mon Nov 22 23:50 MET 1993 X-Listname: Freja Project Information mailing list Warnings-To: <> Date: Mon, 22 Nov 1993 22:49:40 +0000 (GMT) From: LLOYD@skisas.usask.ca Subject: Freja Operations, 93-11-29 to 93-12-12 To: freja-info@plasma.kth.se X-Envelope-To: freja-info@plasma.kth.se X-Vms-To: IN::"freja-info@plasma.kth.se" Mime-Version: 1.0 Content-Transfer-Encoding: 7BIT Dear colleagues, Here is the next schedule for Freja operations. The new item on this agenda is daily survey mode. The daily survey mode is the last major change I shall make to the daily operations. I intend to use the following format for the rest of December. I have checked the NORAD two-line elements and there are no discrepancies in the orbit numbers, so these orbit numbers should not change. Just to remind you in advance, December 13 is a new moon period and will hopefully provide a good opportunity for coordination with ground-based instrumentation. The Saskatchewan sites are currently operating and will continue to do so throughout the winter. Who knows we might even photograph some "black aurora" while Freja is flying right through it. Daily Survey Mode ------------------ As discussed at the workshop, daily SURVEY mode starts 93-12-03. In the last freja operations I suggested three modes COARSE, MEDIUM, FINE. In addition I have now defined three locations ORBIT, EQUATOR and South Pole. ORBIT means collect data over an entire orbit and is always collected in COARSE mode. EQUATOR and SOUTH POLE are self-explanatory. I know other people want to look at mid-latitudes as well, but this is a start. As you all know there is a reasonable volume of work required to generate all the schedulings especially since SIC has to specify UT start and stop times for these survey modes. Here are the criteria I have used. 1) EQUATOR measurements are centred on the time when Freja is directly over the centred geomagnetic dipole equator. 2) SOUTH POLE measurements are centred are the southern most corrected geomagnetic latitude achieved by Freja (typically 72 S). 3) Survey mode is on as late an Esrange orbit as possible to get as far geomagnetically south as possible. However the Survey Dump must not occur on the same orbit as a Burst. 4) I have duty-cycled the survey modes according to the following table. Sunday Monday Tuesday Wednesday Thursday Friday Saturday COARSE, COARSE, FINE, MEDIUM, MEDIUM, MEDIUM, MEDIUM ORBIT, ORBIT, EQUATOR, EQUATOR, EQUATOR, SOUTHPOLE, SOUTHPOLE By definition, ORBIT starts at Esrange LOS and finishes at the next Esrange AOS. However MEDIUM and FINE start times are defined by SIC and implemented in the FREJA timetagged queue by FOC. As a guideline, MEDIUM survey last for 10 minutes, FINE survey last for 30 seconds. Some instruments might choose to run substantially longer than these guidelines. All instruments who wish to participate in the various Survey modes should have already given FOC the following information, 1) Commands to start SURVEY FINE, SURVEY MEDIUM and SURVEY COARSE. 2) Commands to stop each survey mode (after 30 seconds, 10 minutes, one orbit) if required. 3) Commands to dump survey mode data. This will always be done over Esrange. High TM is not guaranteed for this operation. Best wishes, Nick Lloyd Freja Science Plans from 1993/11/29 00:00:00 to 1993/12/12 23:59:59 using orbital elements in c:\f3c\tle\tle.295 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 ----------------------------------------------------------------------------- Monday, 1993/11/29 5534 ESS Low TM 5535 ESS Low TM 5536 ESS High TM Survey COARSE, ORBIT Start UTC = ESS LOS, [~05:06:05 UT] End UTC = ESS AOS, [~06:34:15 UT] 5537 ESS High TM Dump Survey 5538 ESS PASS High TM Burst (F1) PASS AOS +12 Arm Burst (F1) ~08:22:27 UT ESS LOS -8 Forced Trig & Dump ~08:40:59 UT 5539 ESS PASS High TM Burst (F1) PASS AOS +12 Arm Burst (F1) ~10:12:23 UT ESS LOS -8 Forced Trig & Dump ~10:29:10 UT Rabbit Lake, [10:08:38-10:14:45 UT] 5540 PASS High TM Rabbit Lake, [12:01:12-12:08:29 UT] 5541 PASS SYOWA High TM 5542 PASS Low TM 5543 PASS Low TM 5544 PASS Low TM 5545 No Data 5546 ESS Low TM ----------------------------------------------------------------------------- Tuesday, 1993/11/30 5547 ESS Low TM 5548 ESS Low TM 5549 ESS High TM Survey FINE, EQUATOR Start UTC = 04:55:39 UT, [~16:43:44 LT] End UTC = 04:56:09 UT 5550 ESS High TM Dump Survey 5551 ESS PASS High TM Burst (F2) PASS AOS +12 Arm Burst (F2) ~07:58:56 UT ESS LOS -8 Forced Trig & Dump ~08:17:16 UT 5552 ESS PASS High TM Burst (F2) PASS AOS +12 Arm Burst (F2) ~09:48:30 UT ESS LOS -8 Forced Trig & Dump ~10:05:44 UT Rabbit Lake, [09:44:54-09:50:34 UT] 5553 PASS High TM Rabbit Lake, [11:37:06-11:44:25 UT] 5554 PASS SYOWA High TM 5555 PASS Low TM 5556 PASS Low TM 5557 PASS Low TM 5558 No Data 5559 ESS Low TM ----------------------------------------------------------------------------- Wednesday, 1993/12/01 5560 ESS Low TM 5561 ESS Low TM 5562 ESS High TM Survey MEDIUM, EQUATOR Start UTC = 04:27:14 UT, [~16:29:40 LT] End UTC = 04:37:14 UT 5563 ESS High TM Dump Survey 5564 ESS PASS High TM Burst (F2) PASS AOS +12 Arm Burst (F2) ~07:35:28 UT ESS LOS -8 Forced Trig & Dump ~07:53:31 UT 5565 ESS PASS High TM Burst (F2) PASS AOS +12 Arm Burst (F2) ~09:24:39 UT ESS LOS -8 Forced Trig & Dump ~09:42:16 UT Rabbit Lake, [09:21:14-09:26:20 UT] 5566 PASS High TM Rabbit Lake, [11:13:02-11:20:21 UT] 5567 PASS SYOWA High TM 5568 PASS Low TM 5569 PASS Low TM 5570 PASS Low TM 5571 No Data 5572 ESS Low TM 5573 ESS Low TM ----------------------------------------------------------------------------- Thursday, 1993/12/02 5574 ESS Low TM 5575 ESS High TM Survey MEDIUM, EQUATOR Start UTC = 04:03:35 UT, [~16:15:39 LT] End UTC = 04:13:35 UT 5576 ESS High TM Dump Survey 5577 ESS PASS High TM Burst (F4) PASS AOS +12 Arm Burst (F4) ~07:12:03 UT ESS LOS -8 Forced Trig & Dump ~07:29:46 UT 5578 ESS PASS High TM Burst (F4) PASS AOS +12 Arm Burst (F4) ~09:00:50 UT ESS LOS -8 Forced Trig & Dump ~09:18:45 UT Rabbit Lake, [08:57:42-09:02:01 UT] 5579 PASS High TM Rabbit Lake, [10:48:58-10:56:18 UT] 5580 PASS SYOWA High TM 5581 PASS Low TM 5582 PASS Low TM 5583 PASS Low TM 5584 No Data 5585 No Data 5586 ESS Low TM ----------------------------------------------------------------------------- Friday, 1993/12/03 5587 ESS Low TM 5588 ESS Low TM Survey MEDIUM, SOUTHPOLE Start UTC = 04:06:16 UT, [~17:38:42 MLT] End UTC = 04:16:16 UT 5589 ESS High TM Dump Survey 5590 ESS PASS High TM Burst (F4) PASS AOS +12 Arm Burst (F4) ~06:48:42 UT ESS LOS -8 Forced Trig & Dump ~07:05:59 UT 5591 ESS PASS High TM Burst (F4) PASS AOS +12 Arm Burst (F4) ~08:37:01 UT ESS LOS -8 Forced Trig & Dump ~08:55:14 UT Rabbit Lake, [08:34:20-08:37:32 UT] 5592 PASS High TM Rabbit Lake, [10:24:56-10:32:15 UT] 5593 PASS SYOWA High TM Rabbit Lake, [12:18:53-12:25:59 UT] 5594 PASS High TM 5595 PASS Low TM 5596 PASS Low TM 5597 No Data 5598 No Data 5599 ESS Low TM ----------------------------------------------------------------------------- Saturday, 1993/12/04 5600 ESS Low TM 5601 ESS Low TM 5602 ESS High TM Survey MEDIUM, SOUTHPOLE Start UTC = 05:32:14 UT, [~17:34:17 MLT] End UTC = 05:42:14 UT 5603 ESS High TM Dump Survey 5604 ESS PASS High TM Burst (F1) PASS AOS +12 Arm Burst (F1) ~08:13:15 UT ESS LOS -8 Forced Trig & Dump ~08:31:40 UT Rabbit Lake, [08:11:35-08:12:28 UT] 5605 PASS High TM Rabbit Lake, [10:00:54-10:08:11 UT] 5606 PASS High TM Rabbit Lake, [11:54:46-12:01:52 UT] 5607 PASS High TM 5608 PASS Low TM 5609 PASS Low TM 5610 No Data 5611 No Data 5612 ESS Low TM ----------------------------------------------------------------------------- Sunday, 1993/12/05 5613 ESS Low TM 5614 ESS Low TM 5615 ESS High TM Survey COARSE, ORBIT Start UTC = ESS LOS, [~04:34:44 UT] End UTC = ESS AOS, [~06:02:49 UT] 5616 ESS High TM Dump Survey 5617 ESS PASS High TM Burst (F1) PASS AOS +12 Arm Burst (F1) ~07:49:30 UT ESS LOS -8 Forced Trig & Dump ~08:08:05 UT 5618 PASS High TM Rabbit Lake, [09:36:55-09:44:07 UT] 5619 PASS High TM Rabbit Lake, [11:30:39-11:37:45 UT] 5620 PASS High TM 5621 PASS Low TM 5622 PASS Low TM 5623 No Data 5624 No Data 5625 ESS Low TM ----------------------------------------------------------------------------- Monday, 1993/12/06 5626 ESS Low TM 5627 ESS Low TM 5628 ESS High TM Survey COARSE, ORBIT Start UTC = ESS LOS, [~04:10:47 UT] End UTC = ESS AOS, [~05:38:52 UT] 5629 ESS High TM Dump Survey 5630 ESS PASS High TM Burst (F2) PASS AOS +12 Arm Burst (F2) ~07:25:47 UT ESS LOS -8 Forced Trig & Dump ~07:44:28 UT 5631 ESS PASS High TM Burst (F2) PASS AOS +12 Arm Burst (F2) ~09:17:01 UT ESS LOS -8 Forced Trig & Dump ~09:31:16 UT Rabbit Lake, [09:12:57-09:20:03 UT] 5632 PASS SYOWA High TM Rabbit Lake, [11:06:32-11:13:39 UT] 5633 PASS High TM 5634 PASS Low TM 5635 PASS Low TM 5636 PASS Low TM 5637 No Data 5638 ESS Low TM 5639 ESS Low TM ----------------------------------------------------------------------------- Tuesday, 1993/12/07 5640 ESS Low TM 5641 ESS High TM Survey FINE, EQUATOR Start UTC = 03:59:09 UT, [~15:07:16 LT] End UTC = 03:59:39 UT 5642 ESS High TM Dump Survey 5643 ESS PASS High TM Burst (F2) PASS AOS +12 Arm Burst (F2) ~07:02:06 UT ESS LOS -8 Forced Trig & Dump ~07:20:50 UT 5644 ESS PASS High TM Burst (F2) PASS AOS +12 Arm Burst (F2) ~08:53:03 UT ESS LOS -8 Forced Trig & Dump ~09:08:00 UT Rabbit Lake, [08:49:01-08:55:58 UT] 5645 PASS SYOWA High TM Rabbit Lake, [10:42:25-10:49:33 UT] 5646 PASS High TM 5647 PASS Low TM 5648 PASS Low TM 5649 PASS Low TM 5650 No Data 5651 ESS Low TM 5652 ESS Low TM ----------------------------------------------------------------------------- Wednesday, 1993/12/08 5653 ESS Low TM 5654 ESS High TM Survey MEDIUM, EQUATOR Start UTC = 03:30:42 UT, [~14:53:03 LT] End UTC = 03:40:42 UT 5655 ESS High TM Dump Survey 5656 ESS PASS High TM Burst (F4) PASS AOS +12 Arm Burst (F4) ~06:38:28 UT ESS LOS -8 Forced Trig & Dump ~06:57:10 UT 5657 ESS PASS High TM Burst (F4) PASS AOS +12 Arm Burst (F4) ~08:29:06 UT ESS LOS -8 Forced Trig & Dump ~08:44:40 UT Rabbit Lake, [08:25:07-08:31:53 UT] 5658 PASS SYOWA High TM Rabbit Lake, [10:18:18-10:25:28 UT] 5659 PASS High TM Rabbit Lake, [12:12:16-12:19:47 UT] 5660 PASS Low TM 5661 PASS Low TM 5662 PASS Low TM 5663 No Data 5664 ESS Low TM 5665 ESS Low TM ----------------------------------------------------------------------------- Thursday, 1993/12/09 5666 ESS Low TM 5667 ESS High TM Survey MEDIUM, EQUATOR Start UTC = 03:07:01 UT, [~14:38:54 LT] End UTC = 03:17:01 UT 5668 ESS High TM Dump Survey 5669 ESS PASS High TM Burst (F4) PASS AOS +12 Arm Burst (F4) ~06:14:51 UT ESS LOS -8 Forced Trig & Dump ~06:33:30 UT 5670 ESS PASS High TM Burst (F4) PASS AOS +12 Arm Burst (F4) ~08:05:11 UT ESS LOS -8 Forced Trig & Dump ~08:21:19 UT Rabbit Lake, [08:01:16-08:07:46 UT] 5671 PASS SYOWA High TM Rabbit Lake, [09:54:12-10:01:23 UT] 5672 PASS High TM Rabbit Lake, [11:48:12-11:55:37 UT] 5673 PASS Low TM 5674 PASS Low TM 5675 PASS Low TM 5676 No Data 5677 ESS Low TM 5678 ESS Low TM ----------------------------------------------------------------------------- Friday, 1993/12/10 5679 ESS Low TM 5680 ESS High TM Survey MEDIUM, SOUTHPOLE Start UTC = 03:09:54 UT, [~15:52:56 MLT] End UTC = 03:19:54 UT 5681 ESS High TM Dump Survey 5682 ESS PASS High TM Burst (F1) PASS AOS +12 Arm Burst (F1) ~05:51:17 UT ESS LOS -8 Forced Trig & Dump ~06:09:48 UT 5683 ESS PASS High TM Burst (F1) PASS AOS +12 Arm Burst (F1) ~07:41:17 UT ESS LOS -8 Forced Trig & Dump ~07:57:55 UT Rabbit Lake, [07:37:28-07:43:37 UT] 5684 PASS High TM Rabbit Lake, [09:30:05-09:37:19 UT] 5685 PASS SYOWA High TM Rabbit Lake, [11:24:08-11:31:27 UT] 5686 PASS Low TM 5687 PASS Low TM 5688 PASS Low TM 5689 No Data 5690 ESS Low TM 5691 ESS Low TM 5692 ESS Low TM ----------------------------------------------------------------------------- Saturday, 1993/12/11 5693 ESS High TM Survey MEDIUM, SOUTHPOLE Start UTC = 02:46:11 UT, [~15:36:08 MLT] End UTC = 02:56:11 UT 5694 ESS High TM Dump Survey 5695 ESS PASS High TM Burst (F1) PASS AOS +12 Arm Burst (F1) ~05:27:45 UT ESS LOS -8 Forced Trig & Dump ~05:46:04 UT 5696 ESS PASS High TM Burst (F1) PASS AOS +12 Arm Burst (F1) ~07:17:24 UT ESS LOS -8 Forced Trig & Dump ~07:34:29 UT Rabbit Lake, [07:13:43-07:19:27 UT] 5697 PASS High TM Rabbit Lake, [09:06:00-09:13:16 UT] 5698 PASS High TM Rabbit Lake, [11:00:03-11:07:17 UT] 5699 PASS Low TM 5700 PASS Low TM 5701 PASS Low TM 5702 No Data 5703 ESS Low TM 5704 ESS Low TM 5705 ESS Low TM ----------------------------------------------------------------------------- Sunday, 1993/12/12 5706 ESS High TM Survey COARSE, ORBIT Start UTC = ESS LOS, [~01:46:57 UT] End UTC = ESS AOS, [~03:15:15 UT] 5707 ESS High TM Dump Survey 5708 ESS PASS High TM Burst (F2) PASS AOS +12 Arm Burst (F2) ~05:04:17 UT ESS LOS -8 Forced Trig & Dump ~05:22:20 UT 5709 ESS PASS High TM Burst (F2) PASS AOS +12 Arm Burst (F2) ~06:53:32 UT ESS LOS -8 Forced Trig & Dump ~07:11:01 UT Rabbit Lake, [06:50:03-06:55:13 UT] 5710 PASS High TM Rabbit Lake, [08:41:55-08:49:12 UT] 5711 PASS High TM Rabbit Lake, [10:35:58-10:43:08 UT] 5712 PASS Low TM 5713 PASS Low TM 5714 PASS Low TM 5715 No Data 5716 ESS Low TM 5717 ESS Low TM 5718 ESS Low TM