Table 2.
Required time shift for correction of time jumps in GOLF.
| Date | TAI (s) | τmeas. (s) | Δτ (s) | TAI delay (s) | Final delay (s) | Comments |
|---|---|---|---|---|---|---|
| 11 April 1996 | 30.0137 | 48.2 (8) | 0.0 | 0.0 | 0.0 | Time reference for the whole series |
| 16 February 1997 | 40.4536 | 58.3 (7) | 10.1 | 0.44 | 0.1 | LOBT change occurred on 25 February 1997 |
| 4 March 1998 | 63.3188 | 81.8 (7) | 33.6 | 3.31 | 3.6 | |
| 9 October 1998 | 30.0083 | 61.3 (10) | 13.1 | −10.00 | 3.1 | red-wing phase effect |
| 2 February 1999 | 74.8770 | 104.6 (10) | 56.4 | −15.14 | −3.6 | LOBT change occurred on 3 February 1999 |
| 8 February 2002 | 30.0186 | 60.1 (7) | 11.9 | −10.00 | 1.9 | red-wing phase effect |
| 24 November 2002 | – | 47.8 (8) | −0.4 | – | −0.4 | No LOBT change. Change of wing |
| 15 July 2003 | 31.7793 | 4.7 (5) | −43.5 | 41.8 | −3.5 | LOBT not reliable |
| 26 April 2004 | 66.6792 | 84.5 (7) | 36.3 | −3.33 | −3.7 | |
| 27 January 2007 | 30.0239 | 47.9 (8) | −0.3 | 0.0 | −0.3 | LOBT change occurred on 28 January 2007 |
| 10 December 2007 | 35.8530 | 59.6(8) | 11.4 | −4.16 | 1.4 | |
| 6 March 2008 | 30.0132 | 47.7 (7) | −0.5 | 0.0 | −0.5 | LOBT change occurred on 7 March 2008 |
| 1 December 2011 | – | 59.0 (6) | 10.8 | – | 0.8 | No LOBT change |
| 9 May 2012 | 79.2715 | 98.5 (11) | 50.3 | −0.74 | 0.3 | LOBT change occurred on 12 May 2012 |
| 23 June 2012 | – | 108.8 (15) | 60.6 | – | 0.6 | No LOBT change |
| 23 November 2014 | 18.5044 | 46.9 (14) | −1.3 | −11.51 | −1.3 | LOBT change occurred on 24 November 2014 |
| 2 September 2015 | 26.3955 | 46.9 (14) | −1.3 | −3.62 | −1.3 | LOBT change not detected by time correlation |
| 26 February 2016 | 60.0088 | 86.8 (14) | 38.6 | −1.00 | −1.4 | LOBT change occurred on 27 February 2016 |
Notes. The first column is the starting date of the shift, the second column is the residual TAI in seconds of the first block of each day, the third column is the measured time shift compared to GONG, with error bars in parentheses; the fourth column is the time shift with respect to the start of the time series (deduced from the third column), the fifth column is the residual TAI time after correction, and the sixth column is the residual time shift after correction. LOBT stands for local on-board time.
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