OPAL Action Items

• No PIWG conference call on October 16
• Weber CDR to begin around 9 am on October 29, PIWG meeting on October 30
• Delivery of high fidelity mass model 30 November
• Need more specific specifications on interface with OPAL, particularly duration of spring impulse from actuator release until free flight
• OSC needs mass properties nailed down by 30 November
• We need to design to the OSP full launch loads with a margin, not taking into account the SoftRide reduction of loads (from Buckley)
• Send Paul Wilke updates on size of magnetometer boom, mass, cg info, etc., CSA will gather all FE models and send them on to Weber
• Send Paul Wilke specs on the honeycomb – cell size, thickness, face plate thickness
• Contact Paul Wilke to go to CSA and look at the modes of their model of OPAL
• Work out a parallel separation signal from JAWSAT to be used in case of failure to separate from JAWSAT

All FE updates are to go through CSA to be transmitted from CSA to Weber

Buckley

• Falconsat will have 2 rpm rotation when released
• Payloads will experience EMI of 18 Volts/meter
• No PIWG conference call on October 16

Weber

• May 1 delivery date can be negotiated a little with respect to payload delivery
• Buckley – deliver by May 1 for sure; if problems arise, we can negotiate them individually
• Problems will arise if any payloads use S-band receivers or transmitters – no problem with the amateur band frequencies
• Possibility of integration at Vandenberg instead of Weber will be looked into by Weber, but there are no shake facilities at Vandenberg
• We can let Maj. Buckley know if we want to see the Vandenberg facilities ahead of time
• Weber will provide more detailed integration info at JAWSAT CDR Oct. 29
• CDR to begin around 9 am on October 29, PIWG meeting on October 30
• Vandenberg environment at 75?5? F, 35-60% RH;  lower RH at Weber
• Payloads will be integrated and shipped vertically, then tipped horizontal at Vandenberg for integration into separation system
• Composite ICD will be released at CDR, including all payloads’ info
• Delivery of high fidelity mass model 30 November;  Weber is building coarse mass models in October for qualification testing
• Most likely will get about 1 picture/sec from JAWSAT during release of payloads for a total of about 20 pictures each
• Need more specific specifications on interface with OPAL, particularly duration of spring impulse from actuator release until free flight

Orbital Sciences

• OSC needs mass properties nailed down by 30 November
• Released draft 2 of payload user’s handbook
• Projected launch loads in rev.2 of user's handbook are incorrect
• OSC will have better numbers on OSP flight loads in the next couple of weeks
• Internal temperature for payload will be around 200? F

ASU

• ASU has OPAL’s trickle charge requirements, needs other payloaders’ requirements

Air Force Academy

• OCS might bump orbit up to 750 km

CSA SoftRide

• FE Model status:  ours is complete – we can contact Paul Wilke to go over to CSA and take a look at vibration modes on the computer
• CSA will have final numbers on SoftRide flight loads in approx. February
• CSA will have preliminary numbers on SoftRide flight loads in 3-4 weeks
• We need to design to the OSP full launch loads with a margin, not taking into account the SoftRide reduction of loads (from Buckley)
• Send Paul Wilke updates on size of magnetometer boom, mass, cg info, etc., CSA will gather all FE models and send them on to Weber
• Need to watch clearances between JAWSAT and fairing since the SoftRide isolation system lowers the frequency of lateral rocking motion
• Send Paul Wilke specs on the honeycomb – cell size, thickness, face plate thickness
• Contact Paul Wilke to go to CSA and look at the modes of their model of OPAL
• Suggestion to use oversize holes to position the second cup/cone on the interface, set OPAL on interface to position, then tighten down

OPAL

• Asked about CPU running during launch:  Buckley – no CPU usage during launch
• We should work out a parallel separation signal from JAWSAT to be used in case of failure to separate from JAWSAT.  OPAL would be activated after JAWSAT separates from the 4th stage
• All FE updates are to go through CSA to be transmitted from CSA to Weber

JAWSAT Schedule Highlights

Final Payload ICD released 10/30/98
JAWSAT CDR 10/29/98
High fidelity mass models from payloaders 11/30/98
Assemble payloads to flight bus 4/30/99 – 6/10/99
Start assy of free-flying payloads 5/17/98
Acceptance tests and simulation 6/11/99 – 6/17/99
Pre-ship review presentation 6/15/99
Package JAWSAT & equipment 6/16/99 – 6/22/99
Transport JAWSAT to Vandenberg 6/23/99 – 6/25/99
JAWSAT received at SSI/VAFB 7/1/99
Free-flying payloads checkout 7/8/99 – 7/13/99
Launch vehicle/spacecraft integration 8/10/99 – 8/13/99
Close-out 8/13/99
Minotaur launch 8/27/99
Power-up and initial Data Dump 8/30/99

Upcoming PIWG meeting schedule

At Weber State 10/29/98
At Orbital Sciences 12/15/98
At Orbital Sciences 2/15/99
Pre-integration PIWG 3/15/99