GBT
Green Bank Telescope clock correction file
This file records the difference between UTC(GBT) and UTC(GPS).
The observatory distributes this file on the Web, updated about daily.
A discrepancy arose between the observatory-distributed file and the file in this repository (which had been identical to the observatory-distributed one up to that point). Around 2023-03-20 (MJD 60023), the first ~11 entries in the observatory-distributed file were changed to zero. Ryan Lynch expressed surprise that this had occurred, but no resolution had arisen as of 2024-02-14. Since this resulted in the new file failing validation and the file in this repository not updating, at that point I (Anne Archibald) decided to switch those entries to match the observatory values. The old values are available from the version of the file in git tag “gbt-mystery-values”.
If questions arise, contact Ryan S. Lynch rlynch@nrao.edu.
| File | tempo/clock/time_gbt.dat |
| Authority | observatory |
| URL in repository | https://raw.githubusercontent.com/ipta/pulsar-clock-corrections/main/tempo/clock/time_gbt.dat |
| Original download URL | https://www.gb.nrao.edu/~fghigo/timer/time_gbt.dat |
| Format | tempo |
| Bogus last correction | False |
| Clock file start | 2000-12-31 MJD 51909.5 |
| Clock file end | 2024-05-18 MJD 60448.5 |
| Update interval (days) | 1 |
| Last update attempt | 2024-12-26 |
| Last update result | Validation failed |
Log entries from the last few update attempts:
2024-12-17 20:37:39.991 - Validation failed: New version of tempo/clock/time_gbt.dat clock corrections differ from old version where they overlap in 11 places
2024-12-18 20:39:07.990 - Validation failed: New version of tempo/clock/time_gbt.dat clock corrections differ from old version where they overlap in 11 places
2024-12-19 20:36:40.448 - Validation failed: New version of tempo/clock/time_gbt.dat clock corrections differ from old version where they overlap in 11 places
2024-12-20 20:36:05.616 - Validation failed: New version of tempo/clock/time_gbt.dat clock corrections differ from old version where they overlap in 11 places
2024-12-21 20:34:06.733 - Validation failed: New version of tempo/clock/time_gbt.dat clock corrections differ from old version where they overlap in 11 places
2024-12-22 20:34:19.605 - Validation failed: New version of tempo/clock/time_gbt.dat clock corrections differ from old version where they overlap in 11 places
2024-12-23 20:35:38.261 - Validation failed: New version of tempo/clock/time_gbt.dat clock corrections differ from old version where they overlap in 11 places
2024-12-24 20:34:46.233 - Validation failed: New version of tempo/clock/time_gbt.dat clock corrections differ from old version where they overlap in 11 places
2024-12-25 20:34:59.850 - Validation failed: New version of tempo/clock/time_gbt.dat clock corrections differ from old version where they overlap in 11 places
2024-12-26 20:35:10.759 - Validation failed: New version of tempo/clock/time_gbt.dat clock corrections differ from old version where they overlap in 11 places
All clock corrections:
Recent clock corrections:
