=================================================================== Tohban report: 9/04 - 9/10 last data checked 2007-09/07-24:00 =================================================================== Data quality ============= No data for TH-A 09-03, 2240 ~ 09-04, 0450 09-06, 1300-2100 09-07, 0440-2005 TH-B 09-04, 0800 ~ 09-05, 1000 09-07, 0430-1400 many gaps TH-C 09-03, 0405 ~ 09-04, 0105 TH-E 09-03, 1900 ~ 09-05, 1130 FGM: 09/01-09/07 no additional gaps ESA: 09/01 A: no data before 22:05 due to maneuver B: no data before 20:05 due to maneuver C: no data before 22:20 due to maneuver D: no data before 22:45 due to maneuver E: no data before 19:50 due to maneuver 09/02-09/04 no additional gaps 09/05 D: data gap 08:50 ~ 10:40 09/06-09/07 no additional gaps SST: 09/01-09/07 no additional gaps EFI: 09/01-09/07 no additional gaps SCM: 09/01-09/07 no additional gaps Density Triggers: 09/02: A: 18:40~20:00 plasmasphere trigger B: 13:00 trigger at such small density different 16:30~17:30 plasmasphere trigger C: 17:00~18:00 plasmasphere trigger D: 17:00~18:00 plasmasphere trigger E: 13:40 a tall vertical line 09/03: A: 2:00~7:20, 19:00~24:00, irregular trigger at any density change B: 2:00~16:00 missing many triggers C: 4:00~5:30 trigger when there is no density data 17:00~22:40 trigger when there is no density data, but at the beginning there is a burst E: 1:20 vertical line trigger 16:00~17:00 missing trigger 18:40~22:40 trigger when no data 09/04: A: 0:00~4:00 plasmasphere trigger 6:00~7:00 plasmasphere trigger 11:00 false vertical line trigger 15:00~18:00 missing trigger B: 0:00~5:00 plasmasphere trigger 8:00~13:00 trigger with no density data C: plasmasphere trigger 10:00 false vertical line trigger 23:00~ missing trigger E: plasmasphere trigger 13:00~ missing trigger 09/05: A: 17:20 false vertical line trigger B: 0:00~8:00 no density data but trigger and burst, report 8:00, 1:00 plasmasphere trigger 17:55 false vertical line trigger C: 19:50 false vertical line trigger E: 1:00~6:00, 19:00~20:00 trigger at no density data 09/06: A: 11:00, 13:55 false vertical line trigger C: 8:00, 22:30 not clear trigger though the density fall(increase) is big 10:20 vertical line trigger D: 11:00~12:00 missing trigger 22:40 false vertical line trigger E: totally trigger with no data 09/07: A: 4:30~5:30, 17:10~19:30, trigger when there is no density data B: 2:20, 16:20, 19:05 vertical line trigger 22:00~23:00, plasmasphere trigger C: 3:00~5:00 missing trigger 20:00~23:00 plasmasphere trigger D: 19:00~23:30 plasmasphere trigger E: cannot plot yet ================================ Magnetopause crossings: 09/02: A: 15:00~16:00 B+C+D: 13:30~14:30 09/03: A: 3:00~5:00, 22:00~23:00 B: 2:00~3:00, 19:00~20:00 C: 2:00~3:00 D: 2:00~3:00, 19:30~20:30 09/04: A: 13:00~18:00 C: 10:30~14:00 D: 10:30~14:00 09/05: A: 5:00~6:00, 18:00~21:00 B: 2:00~3:00, 16:00~17:30 C: 2:30~4:30, 16:00~17:30 D: 2:30~4:30, 17:00~18:00 09/06: A: 11:00~12:00 B: 8:00~11:00, 22:00~23:00 C: 8:00~11:00, 22:00~23:00 D: 8:00~11:00 09/07: B+C: 15:30~17:00 Points of interest: 09/02: E: 13:20 sudden increase of hot ion A: 00:00~14:00 solar wind B+C+D+E: 00:00~12:00 solar wind 09/03: B+C+D+E: 0:57, 1:25 fte or reconnection D+E 20:55, 21:21 also two very interesting A+B+D+E: 11:00~16:00 solar wind 09/04: A+B+C+D+E: 8:50 hot flux A: 12:40 FTE maybe C+D+E 8:30~11:30 series of suddenly into sheath 09/05: A: 21:04, FTE maybe 09/06: B+C: 8:10~10:00 series of fluctuation, maybe FTEs A: 00:00~02:30 solar wind 09/07: B+C: 15:30~17:00 series of fluctuation B+C: 1:00~4:00, 10:00~12:00 solar wind ================================= Instrument Ops (Details) ------------------------ September 2 THEMIS_E 2007/245 16:46:00 # Data dump - note pass duration longer than 60 min THEMIS_C 2007/245 18:31:00 # Data dump - remind station to zero receiver AGC levels during pre-pass set-up THEMIS_A 2007/245 20:28:00 # Data dump - telemetry possibly degraded from 20:31 to 20:36 September 3 THEMIS_D 2007/246 21:44:00 # Data dump - VC3 only THEMIS_B 2007/247 02:35:00 # Data dump - blind acquisition - late acquisition due to network hub problems at ground station THEMIS_E 2007/247 03:12:00 # Data dump - blind acquisition - missed pass due to network hub problems at ground station September 4 THEMIS_C 2007/248 10:07:00 # Data dump - change spacecraft data rate to 1024K - turn off transmitter by ground command THEMIS_E 2007/248 10:50:00 # Data dump - change ground station data rate to 512K - expected time bias -68 sec September 6 THEMIS_A 2007/249 15:51:00 # Data dump - note pass duration longer than 60 min THEMIS_D 2007/249 20:15:00 # SOH check and track - pre-maneuver table loads, ESA and SST safing - blind acquisition THEMIS_B 2007/250 04:30:00 # SOH check and track - lights-out support - no telemetry - no data loss THEMIS_C 2007/250 05:00:00 # SOH check and track - lights-out support - no telemetry - no data loss THEMIS_D 2007/250 05:30:00 # SOH check and track - lights-out support - late telemetry acquisition - no data loss September 7 THEMIS_D 2007/250 13:09:00 # Perigee raise and inclination drop maneuver - P3 AM2A - nominal burn THEMIS_D 2007/250 14:20:00 # SOH check and track - isolation valve test THEMIS_D 2007/250 15:20:00 # SOH check and track - fuel tank repressurization - nominal repress THEMIS_D 2007/250 17:45:00 # Attitude precession maneuver to ecliptic north - aborted by limit monitor (sun angle low) 6 min into 65 min burn THEMIS_D 2007/251 00:17:00 # Data dump - track time bias +15 sec with ephem based on reconstructed post-maneuver state =====================================================