ASPERA-3 Feb. 25, 01 Monthly Status Report ASPERA Monthly Status ReportMonthly 2_25/ Page 1 Monthly Status Report Report due 2/25/01 Schedule statused as of Feb. 16, 2001

ASPERA-3 Feb. 25, 01 Monthly Status Report ASPERA Monthly Status ReportMonthly 2_25/ Page 2 Project Status Summary Technical Dec Jan Feb Detailed Description: (for items identified as yellow or red) Programmatic Dec Jan Feb Schedule Dec Jan Feb Resources Dec Jan Feb We received the ELS parts back from MSSL / Walton Plating and completed assembly of the flight unit. The unit was then vibrated and cycled in thermal vac. The unit just completed characterization testing and has only one remaining task, measurement of mass properties. We are nearing completion of the Acceptance Data Package and will be ready for the Pre-Ship Review scheduled for March 1. DD250s have been submitted to the NMO for both the IMA delivery and the upcoming ELS delivery. Latest project photos and videos are available on Aspera-3 web site.photosvideos

ASPERA-3 Feb. 25, 01 Monthly Status Report ASPERA Monthly Status ReportMonthly 2_25/ Page 3 Problem and Concern Summary P=Problem C=Concern R=Resolved

ASPERA-3 Feb. 25, 01 Monthly Status Report ASPERA Monthly Status ReportMonthly 2_25/ Page 4 Accomplishments of the Last Month -ELS We received the flight blackened parts from MSSL / Walton Plating. The parts looked very good. We inspected them and decided to use all of the parts from the latest batch. The parts were then vacuum baked out prior to assembly. The flight unit was assembled for flight and then vibrated to protoflight levels. Following vibration, a limited functional test was performed and the unit was then thermal vacuum cycled. Hot and cold starts were performed. The unit was left powered on after the cold start throughout the temperature transitions and plateaus. High voltage was set to the maximum level. Everything looked good. The unit was then removed from the thermal chamber and installed into the characterization chamber where the high voltage test was re-run followed by the full characterization test. We have completed the testing and are currently analyzing the data. The flight spare was reassembled and installed into the characterization chamber. High voltage testing was run prior to needing the GSE for the flight unit TVAC test. This week, the flight spare was reinstalled back into the characterization chamber (it was removed to perform characterization of the flight unit) for its final testing. This will be complete by Feb. 27.

ASPERA-3 Feb. 25, 01 Monthly Status Report ASPERA Monthly Status ReportMonthly 2_25/ Page 5 Accomplishments of the Last Month - IMA The DD250 for delivery of the IMA hardware was resubmitted to NMO based on several discussions. We are awaiting return copies.

ASPERA-3 Feb. 25, 01 Monthly Status Report ASPERA Monthly Status ReportMonthly 2_25/ Page 6 Accomplishments of the Last Month - Data Reduction Software Worked on APAF Software Requirements Specification (SRS) –Draft to be released by the end of February, 2001 –APAF Software Requirements Review to be Held at Next ASPERA-3 Team Meeting in Kiruna, Sweden (March 6-7, 2001) Continued Packet Definitions for ELS –Done all we can for now. We're waiting on the flight software personnel at FMI (Finnish Meteorological Institute) for feedback. Continued Providing Technical Assistance for EPO Web Information Continued Defining and Implementing IDFS Web Tools Held monthly ASPERA-3 Software Status Meeting (February 23, 2001)

ASPERA-3 Feb. 25, 01 Monthly Status Report ASPERA Monthly Status ReportMonthly 2_25/ Page 7 Planned Activities for the Next Month - ELS Measure mass properties of the flight unit. Finalize characterization testing of the flight spare. Hold ELS Pre-ship Review Deliver ELS flight unit to IRF. Attend ASPERA-3 team meeting.

ASPERA-3 Feb. 25, 01 Monthly Status Report ASPERA Monthly Status ReportMonthly 2_25/ Page 8 Planned Activities for the Next Month - IMA None.

ASPERA-3 Feb. 25, 01 Monthly Status Report ASPERA Monthly Status ReportMonthly 2_25/ Page 9 Planned Activities for the Next Month - Data Reduction Software Tasks Attend ASPERA-3 Team Meeting March 6-7 in Kiruna, Sweden Conduct APAF Software Requirements Review (at ASPERA-3 Team Meeting) Continue Working on APAF Software Requirements Specification (SRS) Continue Packet Definitions for ELS as Needed Begin Packet Definitions for NPI Continue Providing Technical Assistance for EPO Web Information Continue Defining and Implementing IDFS Web Tools

ASPERA-3 Feb. 25, 01 Monthly Status Report ASPERA Monthly Status ReportMonthly 2_25/ Page 10 Problem and Concern Status None at this time.

ASPERA-3 Feb. 25, 01 Monthly Status Report ASPERA Monthly Status ReportMonthly 2_25/ Page 11 Schedule Summary ELS: Everything is on track for on-time delivery of the flight unit to IRF. The remaining activities are to measure the mass prosperities of the unit, hold the Pre-Ship Review and hand deliver the unit to IRF. Software: Some software activities have been delayed due to hardware activities. The overall delivery of the software to support mission operations however continues to be on schedule. The full-up schedule is available on the ASPERA-3 Web site.schedule

ASPERA-3 Feb. 25, 01 Monthly Status Report ASPERA Monthly Status ReportMonthly 2_25/ Page 12 ASPERA-3 PHASE B/C/D MASTER SCHEDULE