Bit Errors in RXTE Data

March 19, 1999

Between March 14, 7 UT and March 18, 18 UT RXTE was operating with a faulty memory card that led to some corrupted data. The problem was isolated to half of one of seven cards and the memory was remapped around that area (7% of the total). We believe that only a small part of the data is affected and are trying to determine the impact. We are evaluating whether it will be necessary to repeat observations which occurred during this time.

Once the impact of this event on recent data is known, we will post more information on the GOF Web pages. If analyses show that any data are potentially corrupt, the appropriate PI's will be contacted directly and arrangements made to reschedule the observation, should that prove necessary. We hope to have more information on this situation soon. In the meantime, please be advised if you are analyzing real time data taken since Sunday, March 14, to proceed with caution.