Latest revision 14 September 1998 High Voltage effectively off TJDs 11047 - 11050 LA Detector Gains Out of Balance TJDs 11050 - 11051 TJD 11047 = 22 August 1998 TJD 11050 = 25 August 1998 TJD 11051 = 26 August 1998 Because of GRO spacecraft attitude control problems later attributed to an incorrect solar ephemeris, the instruments, including BATSE, were placed into a low-power mode at TJD/SoD = 11047/71816, which meant that the high voltages were effectively off (although the relevant telemetry bit was apparently not appropriately set) until BATSE was turned on again at TJD 11050/77570. (After the turnon, the high voltages and LLDs were adjusted at TJD 11050/77609 and TJD 11050/77638, respectively, although the LLD settings for the spectroscopy detectors were incorrect and were fixed at TJD/SoD = 11051/71726.) The gains for the Large-Area detectors were out of balance for some time (details below). On TJD 11047, only a small amount of normal data were obtained (SoD 28002 - 30897) before BATSE was placed into the low-power mode. Some gap data (OBC or one-kilobit data) were obtained before and after BATSE was placed into the low-power mode. Quality Flag 50 was set for SoD 71816.00 - 86399.99 On TJD 11048, only gap data were obtained (between SoD 20069 and 78953). The high voltages were effectively off all day. Quality Flag 50 was set for SoD 0.00 - 86399.99 On TJD 11049, normal data resumed at SoD 55418 and lasted through the rest of the day. Some gap data were obtained before and after the resumption of normal data. The high voltages were effectively off all day. Quality Flag 50 was set for SoD 0.00 - 86399.99 On TJD 11050, normal data and gap data were received. The high voltages were effectively off until the turnon at SoD = 77570. Other adjustments followed (see above). Quality Flag 50 was set for SoD 0.00 - 77609.71 Quality Flag 64 was set for SoD 77570.00 - 86399.99 On TJD 11051, normal data and gap data were received. Quality Flag 64 was set for SoD 0.00 - 50000.00 The end time of quality flag 64 was based primarily on the time of recovery of LA Detector 4.