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Ground and Launch Operations Status

TERRIERS launched successfully from VAFB! The initial data shows a 550 X 551 km orbit and all indications look good! We are now awaiting first contact. TO see the terriers position go to the mission page.

Latest radar weather at take-off site
Latest radar weather at drop zone

Ground operations for TERRIERS are taking place at Vandenberg AFB located on the central California coast about 45 minutes north of Santa Barbara. TERRIERS operations began on 3-19-99 with the arrival of the spacecraft. For a schedule of events see below. A new photo gallery of integration is now available. Presently we list the integration log and status.

Ground Operations Log

Our anticipated schedule has begun to slide. We continue to trickle charge the power system.

Items are put in reverse chronological order for quick access to the latest information.
   Date    Time Activity Activity Details/Status
5-17-99 15:30 Pre-Launch The launch team has arrived at the hotpad. The weather looks great and we are set for launch!

5-16-99 15:00 Pre-Launch We attended the FRR and LRR. There appear to be no holds for launch. WE ARE A GO FOR MAY 17!

5-15-99 14:00 Mate to L1011 TERRIERS is mated to the L1011. We performed a simulated arming sequence to ring out the GSE and COM lines. The spacecraft is now set and secure for countdown on launch day.

5-15-99 6:00 Transport Transport from Bldg. 1555 to the Hotpad has begun. The L1011 arrived yesterday evening.

5-14-99 19:00 LMCM/Launch Rehersal/LPO Training The transfer to AIT was completed successfully and no issues surfaced at the LRR yesterday. The L1011 work seems to be coming along, so currently there are no issues keeping us from a 5-17-99 launch. Today we participated in the mission rahersal. It was informative, and there were no outstanding TERRIERS issues. We ran the disarming procedure with the LPOs to familarize them with TERRIERS. Tim also attended this morning's LMCM in which there were no outstanding TERRIERS related issues

5-13-99 08:00 Pre Transport Final touches on the fairing closeout continue. We will transport the vehicle to the AIT today. A problem with the L1011 was announced - horizontal stabilizer needs to be replaced - so we may slip a day or two on launch.

5-12-99 09:45 Fairing Closeout Final touches on the fairing closeout continue. We shipped out the secondary GS back to Boston and we are preparing to support moving the vehicle onto the AIT (transport trailer), tomorrow morning.

5-11-99 09:05 Fairing Closeout The fairing halves went on yesterday without any problems, and it will be closed out today if we continue at our current rate of progress. The Titan has slipped, so barring any unforeseen problems, we will launch on Monday May 17th!

5-10-99 07:55 Fairing Closeout This morning we will perform the fairing closeout procedures on the satellite. We are still working towards a launch on the 17th, but have still not heard about the Titan. It is reported that the Titan problem was software, which may indicate a need for them to slip futher. This would clear the way for us to launch on the 17th.

5-7-99 07:45 Fairing Closeout Completed a spacecraft check yesterday - all looks good. We also participated in a Pre-LRR and found that there are still some issues with the vehicle that are being worked... We expect a data go from Flight Sim #4a later this morning, so we'll start fairing closeout then. The latest on the launch date is that they will make the decision on the Titan IV on Monday. There are rumors that the Air Force and Lockheed may not be comfortable with the 15th. In any case, it looks like it will only be a couple of days slip if they push the Titan to the 15th...

5-6-99 08:30 Flt Sim #4a Flight Sim 4a was completed yesterday and all indications are that it went well. The data is being processed today and we expect a "data go" tomorrow. The bad news for today is that the Titan IV wants to go on the 15th and they are talking to NASA about it now. I believe this would be a 1 week slip for us. We continue to work for a launch on the 17th, however.

5-5-99 08:30 Flt Sim #4a Flight Sim #4a to go off today. Also, the Air Force has give us the 17th on the range. Furthermore, with the failure of the Delta III last night, it looks like the GOES will be delayed. The 17th looks very good for launch now!

5-4-99 08:00 Pre Flt Sim #4a Still no firm launch date has been scheduled, due to conflicts with the GOES launch, and we are still working toward the 17th. The MUBLCOM crew arrived this morning to work the dreaded NEA harness and prepar e for Flight Sim. #4a - scheduled for tomorrow.

5-3-99 18:30 Post Anomaly No firm launch date has been scheduled, due to conflicts with the GOES launch. We are still working toward the 17th. Flight Sim. #4a is scheduled for Wednesday, and fairing closeout starting on Saturday. Over the weekend we compiled a photo gallery page.

4-30-99 18:30 Post Anomaly Dan Cotton arrives to cover the next couple of weeks. He checks in with the spacecraft.

4-28-99 10:30 Post Anomaly

OSC has received a verbal go-ahead and is waiting on written confirmation to proceed with Flight Sim #4a on Wednesday. Our launch date is still waiting for Range confirmation. We anticipate it will be near May 17. Our working schedule, based on this launch date, has been updated. Andy and Sherri Stephan return to Boston.

4-28-99 10:30 Standdown We are still waiting for an official go-ahead from NASA, and Range confirmation of a launch date before OSC can release a new schedule.

4-28-99 10:30 Standdown We are still waiting for an official go-ahead from NASA, and Range confirmation of a launch date before OSC can release a new schedule.

4-27-99 08:15 Standdown An error was found in a model was corrected it. Their model now matches the OSC model. A scheduling meeting is planned for later today to work out a new launch date. It is anticipated to be around May 18. We will update the schedule when it becomes available.

4-26-99 08:10 Standdown TERRIERS is mated to Pegasus and waiting for NASA and OSC simulations of the WIRE anomaly to agree. We continue to trickle charge the power system.

4-23-99 09:00 Standdown TERRIERS is mated to Pegasus and waiting for NASA and OSC simulations of the WIRE anomaly to agree. Failure to come to agreement by today means we will not be able to redo Flight Sim. 4 before Wednesday. If it slips any further, it will begin to push the launch date. We continue to trickle charge the power system.
4-22-99 08:40 Standdown TERRIERS is mated to Pegasus and waiting for NASA and OSC simulations of the WIRE anomaly to agree. We continue to trickle charge the power system.

4-21-99 08:00 Standdown TERRIERS is mated to Pegasus and waiting for NASA and OSC simulations of the WIRE anomaly to agree. We continue to trickle charge the power system.

4-20-99 09:10 Standdown TERRIERS is mated to Pegasus and awaiting a go ahead from NASA. We continue to trickle charge the power system. We are anticipating 2 weeks to get NASA and OSC simulations of the WIRE anomaly to agree. This will push the launch date to the week of May 16. A true schedule has not yet been determined.

4-19-99 10:20 Standdown TERRIERS is mated to Pegasus and awaiting a go ahead from NASA. We continue to trickle charge the power system. Our earliest launch date appears to be May 12 based on range availability, assuming Flight Sim 4 happens on Friday.

4-18-99 10:20 Standdown TERRIERS is mated to Pegasus and awaiting a go ahead from NASA. We continue to trickle charge the power system.

4-17-99 12:00 Standdown TERRIERS is mated to Pegasus and awaiting a go ahead from NASA. We continue to trickle charge the power system.

4-16-99 15:00 Standdown TERRIERS is mated to Pegasus and awaiting a go ahead from NASA. We continue to trickle charge the power system. Our current best guess schedule will pick up with Flight Sim 4 being redone on Friday (April 23) at the earliest.

4-15-99 13:45 Standdown TERRIERS is mated to Pegasus and awaiting a go ahead from NASA. We continue to trickle charge the power system. The TERRIERS team watched the Delta II carrying Landsat 7 successfully lift off from (Space Launch Complex) SLC 2. Tim Cook and Valerie Taylor are returning to Boston this evening to await resolution of the WIRE anomaly, and our new launch date.

4-14-99 17:00 Standdown TERRIERS is mated to Pegasus and awaiting a go ahead from NASA. We continue to trickle charge the power system. Sherri Godlin Stephan arrived to supplement the launch crew.

4-13-99 16:54 Standdown TERRIERS is mated to Pegasus and awaiting a go ahead from NASA. We continue to trickle charge the power system.

4-12-99 16:53 Standdown TERRIERS is mated to Pegasus and awaiting a go ahead from NASA. We continue to trickle charge the power system.
NASA held a series of meetings today in which it was decided that we should not mate the fairing until after meeting again on Wednesday. The Wednesday meeting will allow NASA time to review data from several models which are currently being used to try to understand the yaw anomaly. As a result, it is not possible to launch before the 22nd of April.

4-11-99 12:45 Standdown TERRIERS is mated to Pegasus and awaiting a go ahead from NASA. We continue to trickle charge the power system. On a more positive note, the leak in the roof is fixed.
4-10-99 10:50 Standdown TERRIERS is mated to Pegasus and awaiting a go ahead from NASA. We continue to trickle charge the power system.
4-9-99 18:19 Standdown We had started removing our protective covers in preparation for fairing installation when Orbital was instructed by NASA to standdown. NASA Goddard is concerned about a yaw event seen during the WIRE launch and has issued an "indefinite hold" until the issue is closed. No work will be performed on the vehicle until Monday when Orbital and NASA will regroup. The LRR Monday has been canceled and our April 18th launch date is in question. We have rebagged the spacecraft and are awaiting developments.
4-8-99 09:50 Fairing
Closeout
We started our fairing closeout procedure. We have removed all test and RF GSE and installed the final flight high voltage safety plug. Our next communication with the spacecraft will be from orbit.
4-7-99 20:09 Post-Mate
Ops
Today we finished up our final payload checkout and prepared for fairing installation Thursday. All systems look good.
4-6-99 08:30 Post-Mate
Ops
Today we started our post mate testing sequence. Testing was somewhat limited because a series of hazardous vehicle operations to pressurize the RCS and HAPS meant that we had to clear the high bay and leave the facility during those operations. All indications are that the spacecraft is in good working order and we should finish testing Wednesday.
4-5-99 09:51 Post-Mate
Ops
TERRIERS successfully participated in flight sim #4 with no outstanding issues.
4-4-99 16:30 Post-Mate
Ops
TERRIERS is mated to the Pegasus and awaiting flight sim #4.
4-3-99 13:30 Mate
Ops
TERRIERS is mated successfully to the Pegasus.
4-2-99 13:30 Pre-mate
Ops
We participate in the TERRIERS pre-mate review. It is accepted that that we have been ready to mate for over a week, and that there are no liens against launch from the TERRIERS spacecraft side.
4-2-99 11:40 Pre-mate
Ops
A general email announcement implies incorrectly that TERRIERS caused launch delays. THIS IS UNTRUE. Integration has gone extremely well thus far and we are ready to mate. It is a harness on OSC's MUBLCOM secondary satellite that has been holding up integration for the past week along with the review of a vehicle anomaly on the WIRE flight. In other news, we completed the tip maneuver of the satellite in preparation for the mate. Operations were completed inside an hour while MUBLCOM continues to check out their harness.
4-1-99 10:40 Pre-mate
Ops
MUBLCOM's harness is due back today. The new launch date is still not completely set, but it looks like it will be the 19th. They have stretched out the schedule to accommodate the later date. See the updated schedule .
3-31-99 18:00 Pre-mate
Ops
MUBLCOM's harness went out to Pomona, CA for re-rework. OSC is requesting the 19th for a launch date from the range, but NASA is still pushing for the 17th. This depends upon how willing the range is to reconfigure about 40 hours after the planned Delta II on the 15th. The only operations we did besides battery maintenance, were some flow gauge tests on our N2 purge system. They were successful.
3-30-99 18:00 Pre-mate
Ops
MUBLCOM's reworked harness failed initial tests and must be reworked again. This will take 2 days and pushes TERRIERS mating operations till Friday or Saturday. The launch date has slipped from the 12th to a later date which is still TBD. We may get word tomorrow....
3-30-99 07:45 Pre-mate
Ops
OSC announced that the anomaly on WIRE's first stage has caused a software change for the Pegasus avionics. This will cause a 2 or 3 day delay. They are still looking at the 12th for a launch date, but it is much less likely now. We heard a rumor of the 17th, due to the Delta on the 15th. Spacecraft mates will continue as scheduled.
3-29-99 18:00 Pre-mate
Ops
We performed an Alk. Battery test successfully. MUBLCOM's harness arrives and is being installed.
3-29-99 07:30 Pre-mate
Ops
MUBLCOM's harness is due to arrive around 18:00 and will be installed tonight. Testing on the harness will take place tomorrow morning with mate to commence mid morning.
3-28-99 10:00 Pre-mate
Ops
TERRIERS battery maintenance operations continued and we verified our recycle procedure.
3-27-99 10:00 Pre-mate
Ops
Only TERRIERS battery maintenance operations were carried out today as we await mate.
3-26-99 18:00 Pre-mate
Ops
Only TERRIERS maintenance operations were carried out today as we await mate. MUBLCOM's cabling discrepancy mitigation plan was completed and we are holding our launch date of April 12th. MUBLCOM will send the affected harness back to Dulles for rework over the weekend, reinstall and do testing on Monday, and mate Tuesday. TERRIERS will then mate on Wednesday. In the mean time the vehicle ops that were scheduled for Monday and Tuesday will go on as scheduled. The result is we only lose a day which we will make up next Saturday. See updated schedule
3-26-99 10:00 Pre-mate
Hold
The discrepancy in MUBLCOM's cabling is being reviewed and it appears that we will not mate this weekend. The current plan is to install shielding on one set of cables and mate MUBLCOM this afternoon. This would be followed by an intermediate test to verify there is no cross talk. TERRIERS would then be mated on Monday. This plan is currently being evaluated by NASA and OSC management.
3-25-99 14:00 Flt Sim #3 A discrepancy in MUBLCOM'S Non Explosive Actuator (NEA) cabling is announced and is being worked. A mitigation action has been developed and will be discussed with NASA tomorrow. This will probably delay MUBLCOM mate until late Friday or early Saturday. We also successfully ran the full arming and recycle procedures proofing a recycle mitigation procedure and the strip chart monitors.
3-25-99 08:00 Flt Sim #3 We verified that the recycle discrepancy was due to a design feature of the power system and developed 3 mitigating procedures. Two of the 3 procedures are tested. Also, we incorporated the strip chart monitors into the arming procedure.
3-24-99 18:15 Flt Sim #3 Flight sim #3 was set up all day and began around 18:15. The TERRIERS arming sequence runs smoothly, but the spacecraft boots unexpectedly during the recycle procedure. We have a working theory for the discrepancy and we will review the events and schematics tomorrow. In any case, the discrepancy does NOT pose a risk of radiation inside the fairing.
3-24-99 08:00 Functional Functional data is reviewed. All the data checks out.
3-23-99 17:00 Functional Functional test complete. Begin data review.
3-23-99 08:00 Functional Completed verification of TESS E and GISSMO electronics. Obtained range certification, so we can now radiate without getting clearance. In the afternoon Paul Bernhardt verified CERTOs (radio beacon) functionality in both the stowed and deployed configurations.
3-22-99 08:00 Functional Waited for range clearance and then continued with instrument checkout. TESS A-D electronics were verified. We also completed successfully an MSS phasing test. Due to pulser cable problems, we were unable to complete TESS E/G. We hope to finish on 3/23. Also Paul Bernhardt arrived and joined the team for CERTO (radio beacon) checkouts, which we hope to complete on 3/23 as well.
3-21-99 08:00 Functional Worked a GSE Tx problem all morning. After we fixed it, we tested the HCIs, and started the instrument checkout. We also performed a beacon antenna deployment test; everything continues to check out.
3-20-99 08:00 Functional The remainder of the GSE is set up and we begin the post ship functional tests. Various minor issues with the GSE are uncovered and worked. We complete the low level functional - all checks out so far.
3-19-99 17:00 Lift TERRIERS is lifted onto the workstand and placed in the clean room at building 1555.
3-19-99 09:00 Unpack TERRIERS arrives at Building 1555 and is unpacked. All indications show that TERRIERS had a smooth ride. The GSE is unpacked and we start to set it up.
3-18-99 20:00 Travel The TERRIERS integration team (Tim Cook, Andy Stephan, Valerie Taylor, and Dan Cotton) arrives in Lompoc.
 
 
12 May 1999
Prepared by Dan Cotton
Center for Space Physics
Boston University
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