================================================================== THEMIS Tohban reporting and scheduling for period: for Tuesday July 03 (doy:177) - Monday July 09 (doy:183) ================================================================== Tues, Jul 03, 2007/184 *operations meeting. Matters arising: SSR problems on Themis E are not a big problem, considered a nuisance at the moment. Anomaly report opened. Compression to be re-implemented. Issues between ETC and compression to be addressed by Ludlam/ Harvey in implementation. Most of the data from the SDTs is back. There are some funny issues. These may be related to the Distal braids. Need to do a test on one sc. Won’t interfere with the other instruments according to Bonnell. Still need to implement auto-attenuator switching on SST. At the moment it’s at 8Re. *McFadden reported moments were being decimated starting June 24. Doesn’t know why. Why are they being decimated in Fast mode? *Bonnell circulated a plan for the Distal braid test, run from an ITOS script under development. 20 min long, run during fast survey on a single sc in sunlight (th-c). minimal side effects. Wed, Jul 04, 2007/185 *Richard sent out the ITOS procedure, tested on Flat-Sat and found to work. 20 minute duration, needs a pass of 25 minutes at least. Thurs, Jul 05, 2007/186 *Tohban okayed the go-ahead of the distal braid test. *Moments were only decimated on June 24 (day 175) Checked with Ludlam and Roberts – seems that there was an IDPU error on Themis D on this day, which led to a problem with the tables that probably caused the decimation. Not an action item at this time. Fri, Jul 06, 2007/187 *Test to determine source of 11 Hz noise on the FGM proposed. Hypothesis is that the interference comes from the ETC board. Therefore want to take some data on FGM when the ETC is off. If the ETC is off, then there is no SST/ESA data. *Phan circulated a new trigger for burst mode based on log2 algorithm that performs well in tests. Sat, Jul 07, 2007/188 *ATS uploaded which enabled compression on TH-C, D, and E from this day. The compression is running but on a non-interference basis - not when IDPU scripts are being run, not when we're in Fast Survey, and not when we're downlinking Sun, Jul 08, 2007/189 Mon, Jul 09, 2007/190 *FGM test – Auster requested that test be run at apogee, in low fields, range 6. Idea (Vassilis) capture two time-based nominal duration particle bursts, one after the other, with no change of mode, but with ETC enabled on the first, disabled on the second. Ludlam has developed test procedure for one spacecraft. On orbit time and location needs to be decided. *Distal braid test - in the pipeline. *New IDPU script set circulated by Richard incorporating changes to the EFI Config Byte. ----------------Future Plans ----------------------- Distal braid test to be completed FGM test to be done Approve new IDPU script set New onboard triggers On board moments - tables - need to be updated and will have to be uploaded Art Hull will be the next tohban 07/10