See http://icxc.harvard.edu/mta/SOT_reports/sot-shift.html Shift H5534. Start at 259:02:10 GMT = 10:10pm 15 Sep 2014 EDT End at 259:04:10 GMT = 12:10am 16 Sep 2014 EDT ACIS SOT Shift Report 2014-09-15 H5534 ACIS Personnel: Richard Edgar, Paul Plucinsky PLAN -------- We intend to run CAP1329 to turn on the ACIS DH heater side B SUMMARY: -------- The ACIS DH heater side B was turned on as expected. The power dissipated by the heater reached a maximum of 60 W and then dropped to below 10 W after forty minutes. The Camera Body temperature is regulating as expected, side A at -62.4 C and side B at -59.9 C. The FP temperature dropped to -121.2 C after an hour into the test. TIMELINE (GMT day 259) ---------------------- 259:01:51 early AOS on DSS 54 259:01:52 ACIS FP temperature is -119.9 C 259:01:52 Camera Body Temps 1CBAT = -67.3 C, 1CBBT = -67.3 C 259:01:55 OC/CC and ACIS verify initial configuration 259:01:55 OC/CC start the SSR dump 259:01:56 DEA side A is on, 1DEPSAX=ENB 1DEPSA=ON 1DEICACU = 0.56 Amps DEA side B is off,1DEPSXB=DIS 1DEPSB=OFF 259:01:57 confirm that DA heater side B is off 1DAHTBEN = DIS 1DAHTBON = OFF 259:02:16 OC/CC are ready to start CAP 1329 259:02:17 OC/CC uplink command to enable side B heater, 1HHTRBEN 259:02:18 ACIS confirms 1DAHTBEN = EN 259:02:19 OC and ACIS confirm 1DAHHBVO = 27.7 V 259:02:20 OC/CC uplink command to turn on side B heater, 1HHTRBON 259:02:21 ACIS confirms 1DAHTBON = ON 259:02:21 ACIS confirms heater power dissipation 1DAHBVO 1DAHBCU Power 259:02:22 +30.6 V 1.88 A 57.5 W 259:02:22 Camera Body Temps 1CBAT = -67.3 C, 1CBBT = -67.3 C 1DAHBVO 1DAHBCU Power 259:02:24 +27.8 V 2.00 A 55.6 W 259:02:25 +28.1 V 1.60 A 45.0 W 259:02:26 Camera Body Temps 1CBAT = -67.3 C, 1CBBT = -62.4 C 1DAHBVO 1DAHBCU Power 259:02:27 +23.0 V 1.5 A 34.5 W 259:02:29 FP Temp = -120.2 C 259:02:30 +20.5 V 1.26 A 25.8 W 259:02:35 +17.5 V 1.10 A 19.2 W 259:02:37 Camera Body Temps 1CBAT = -64.8 C, 1CBBT = -62.4 C 259:02:37 FP Temp = -120.5 C 259:02:40 +13.3 V 1.04 A 13.8 W 259:02:42 Camera Body Temps 1CBAT = -62.4 C, 1CBBT = -62.4 C 259:02:45 +14.3 V 1.02 A 14.5 W 259:02:47 Camera Body Temps 1CBAT = -62.4 C, 1CBBT = -59.9 C Camera Body temperatures at the regulated values 259:02:50 +12.6 V 0.94 A 11.8 W 259:02:55 +10.7 V 0.76 A 8.1 W 259:03:00 +11.0 V 0.74 A 8.1 W 259:03:02 FP Temp = -121.0 C 259:03:05 +10.5 V 0.66 A 6.9 W 259:03:10 +10.0 V 0.62 A 6.2 W 259:03:20 +9.2 V 0.70 A 6.5 W 259:03:21 FP Temp = -121.2 C 259:03:33 +8.6 V 0.66 A 5.7 W 259:04:00 LOS