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VLA to NIST

Very Large Array to NIST clock corrections (TEMPO2)

This file is pulled from the TEMPO2 repository and may not be fully up-to-date.

   
File T2runtime/clock/vla2nist.clk
Authority temporary
URL in repository https://raw.githubusercontent.com/ipta/pulsar-clock-corrections/main/T2runtime/clock/vla2nist.clk
Original download URL https://bitbucket.org/psrsoft/tempo2/raw/HEAD/T2runtime/clock/vla2nist.clk
Format tempo2
Bogus last correction False
Clock file start 1990-10-27 MJD 48191.2
Clock file end 1993-11-13 MJD 49304.0
Update interval (days) 7
Last update attempt 2025-10-27
Last update result Unchanged

Log entries from the last few update attempts:

2025-08-25 20:42:23.113 - Unchanged
2025-09-01 20:38:21.833 - Unchanged
2025-09-08 20:40:28.725 - Unchanged
2025-09-15 20:38:13.612 - Unchanged
2025-09-22 20:40:03.293 - Unchanged
2025-09-29 20:37:16.712 - Unchanged
2025-10-06 20:39:56.620 - Unchanged
2025-10-13 20:39:40.803 - Unchanged
2025-10-20 20:42:25.662 - Unchanged
2025-10-27 20:39:58.739 - Unchanged

Full log

Leading comments from clock file:

# From old tempo time_vla.dat:
# awk '$1<50000 {printf("%11.5f %10.5e\n",$1,($3-$2)/1.e6)}' time_vla.dat
#  > $TEMPO2/clock/vla2nist.clk
#

All clock corrections:

plot of all clock corrections

Recent clock corrections:

plot of recent clock corrections