| Date: | 1999-04-27 23:02:00 | |
| Sender: | Van S. Husson, ILRS Central Bureau and NASA SLR Network <HussonV@thorin.atsc.allied.com (Husson, Van)> | |
| Subject: | [SLR-Mail] No. 302: Tahiti (Station 7124) Cesium Problems | |
| Author: | Van S. Husson, ILRS Central Bureau and NASA SLR Network | |
| Content: | ******************************************************************************** SLR Electronic Mail 1999-04-27 23:02:00 UTC Message No. 302 ******************************************************************************** Author: Van S. Husson, ILRS Central Bureau and NASA SLR Network Subject: Tahiti (Station 7124) Cesium Problems Since early February 1999, the SLR system in Tahiti (Station 7124) has been experiencing cesium problems (excessive drifts, >20 microseconds a day). To minimize the impact on their data quality, the station operators have been performing numerous clock adjustments (sometimes a few an hour) to maintain the station time to within 1-2 microsecond of GPS time. This drift rate has gotten progressively worse despite getting a second replacement cesium. This cesium problem will probably continue at least for one more month until they receive some new timing hardware. So please be warned, that MOBLAS 8 data will be slightly degraded, but should still be scientifically useful. We will keep your informed of any changes in the situation and we regret any inconvenience this may cause. From: HussonV@thorin.atsc.allied.com (Husson, Van) ******************************************************************************** |