Coordinated Universal Time UTC and its local realization UTC(TP). Computed values of [UTC−UTC(TP)] and uncertainties valid for the period of a Circular.
From 2006 January 1, 0h UTC, TAI−UTC = 33 s. From 2009 January 1, 0h UTC, TAI−UTC = 34 s.
UTC−UTC(TP), ns
|
Date 0h UTC MJD
|
Dec 29 55559 2.8 |
Jan 3 55564 0.4 |
Jan 8 55569 −3.5 |
Jan 13 55574 −0.3 |
Jan 18 55579 1.2 |
Jan 23 55584 −3.0 |
Jan 28 55589 1.8 |
Uncertainty/ns uA uB u 0.3 5.1 5.1 |
|
Date 0h UTC MJD
|
Jan 28 55589 1.8 |
Feb 2 55594 −3.3 |
Feb 7 55599 −1.1 |
Feb 12 55604 −7.2 |
Feb 17 55609 −5.0 |
Feb 22 55614 −10.7 |
Feb 27 55619 −13.8 |
Uncertainty/ns uA uB u 0.3 5.1 5.1 |
|
Date 0h UTC MJD
|
Feb 27 55619 −13.8 |
Mar 4 55624 −20.6 |
Mar 9 55629 −18.7 |
Mar 14 55634 −19.0 |
Mar 19 55639 −17.7 |
Mar 24 55644 −27.7 |
Mar 29 55649 −24.6 |
Uncertainty/ns uA uB u 0.3 5.3 5.1 |
|
Date 0h UTC MJD
|
Mar 29 55649 −24.6 |
Apr 3 55654 −20.6 |
Apr 8 55659 −24.4 |
Apr 13 55664 −20.8 |
Apr 18 55669 −12.3 |
Apr 23 55674 −11.1 |
Apr 28 55679 −3.7 |
Uncertainty/ns uA uB u 0.3 5.2 5.2 |
|
Date 0h UTC MJD
|
Apr 28 55679 −3.7 |
May 3 55684 2.2 |
May 8 55689 3.5 |
May 13 55694 0.1 |
May 18 55699 5.5 |
May 23 55704 10.7 |
May 28 55709 15.1 |
Uncertainty/ns uA uB u 0.3 5.2 5.2 |
|
Date 0h UTC MJD
|
May 28 55709 15.1 |
Jun 2 55714 22.3 |
Jun 7 55719 26.7 |
Jun 12 55724 26.8 |
Jun 17 55729 34.5 |
Jun 22 55734 41.1 |
Jun 27 55739 34.4 |
Uncertainty/ns uA uB u 0.3 5.2 5.2 |
|
Date 0h UTC MJD
|
Jun 27 55739 34.4 |
Jul 2 55744 31.8 |
Jul 7 55749 28.1 |
Jul 12 55754 24.3 |
Jul 17 55759 18.9 |
Jul 22 55764 18.8 |
Jul 27 55769 21.0 |
Uncertainty/ns uA uB u 0.3 5.2 5.2 |
|
Date 0h UTC MJD
|
Aug 1 55774 22.0 |
Aug 6 55779 17.7 |
Aug 11 55784 14.1 |
Aug 16 55789 8.5 |
Aug 21 55794 8.3 |
Aug 26 55799 7.7 |
Aug 31 55804 −0.9 |
Uncertainty/ns uA uB u 0.3 5.2 5.2 |
|
Date 0h UTC MJD
|
Aug 31 55804 −0.9 |
Sep 5 55809 −9.7 |
Sep 10 55814 −8.5 |
Sep 15 55819 −2.1 |
Sep 20 55824 0.6 |
Sep 25 55829 5.8 |
Sep 30 55834 0.9 |
Uncertainty/ns uA uB u 0.3 5.1 5.1 |
|
Date 0h UTC MJD
|
Sep 30 55834 0.9 |
Oct 5 55839 −0.6 |
Oct 10 55844 0.7 |
Oct 15 55849 0.9 |
Oct 20 55854 2.9 |
Oct 25 55859 −4.1 |
Oct 30 55864 −4.2 |
Uncertainty/ns uA uB u 0.3 5.2 5.2 |
|
Date 0h UTC MJD
|
Oct 30 55864 −4.2 |
Nov 4 55869 −5.8 |
Nov 9 55874 −5.6 |
Nov 14 55879 −6.0 |
Nov 19 55884 −6.9 |
Nov 24 55889 −9.4 |
Nov 29 55894 −7.5 |
Uncertainty/ns uA uB u 0.3 5.2 5.2 |
|
Date 0h UTC MJD
|
Nov 29 55894 −7.5 |
Dec 4 55899 −9.9 |
Dec 9 55904 −11.2 |
Dec 14 55909 −11.1 |
Dec 19 55914 −12.0 |
Dec 24 55919 −15.0 |
Dec 29 55924 −20.2 |
Uncertainty/ns uA uB u 0.3 5.1 5.1 |
Monthly rates of TAI−clock for intervals of one month ending at the given dates (unit is ns/day, "-" denotes that the clock was not used).
| Date | MJD | Clocks | |||
| S/N 154 | S/N 163 | S/N 1227 | S/N 2476 | ||
|
28 Jan 2011 |
55589 | 8.90 | 17.03 | 14.19 | 6.20 |
| 27 Feb 2011 | 55619 | 8.57 | 17.24 | 13.76 | 6.47 |
| 29 Mar 2011 | 55649 | 8.54 | 17.53 | 13.50 | 6.24 |
| 28 Apr 2011 | 55679 | 10.89 | 18.13 | 14.06 | 6.10 |
| 28 May 2011 | 55709 | 11.73 | 18.23 | 14.15 | 5.40 |
| 27 Jun 2011 | 55739 | 9.66 | 19.62 | 14.63 | 6.58 |
| 27 Jul 2011 | 55769 | 9.80 | 19.88 | 14.23 | 6.07 |
| 31 Aug 2011 | 55804 | 9.17 | 20.38 | 14.15 | 5.93 |
| 30 Sep 2011 | 55834 | 8.94 | 21.03 | 14.41 | 6.67 |
| 30 Oct 2011 | 55864 | 11.28 | 21.72 | 14.06 | 5.88 |
| 29 Nov 2011 | 55894 | 10.43 | - | 14.11 | 6.85 |
| 29 Dec 2011 | 55924 | 10.46 | - | 13.80 | 7.17 |
Relative weights (in percent) of the clocks for intervals of one month ending at the given dates.
| Date | MJD | Clocks | |||
| S/N 154 | S/N 163 | S/N 1227 | S/N 2476 | ||
|
28 Jan 2011 |
55589 | 0.081 | 0.010 | 0.744 | 0.536 |
| 27 Feb 2011 | 55619 | 0.067 | 0.012 | 0.729 | 0.571 |
| 29 Mar 2011 | 55649 | 0.074 | 0.014 | 0.744 | 0.744 |
| 28 Apr 2011 | 55679 | 0.077 | 0.018 | 0.755 | 0.755 |
| 28 May 2011 | 55709 | 0.075 | 0.022 | 0.751 | 0.751 |
| 27 Jun 2011 | 55739 | 0.079 | 0.023 | 0.737 | 0.737 |
| 27 Jul 2011 | 55769 | 0.085 | 0.027 | 0.729 | 0.729 |
| 31 Aug 2011 | 55804 | 0.089 | 0.029 | 0.716 | 0.716 |
| 30 Sep 2011 | 55834 | 0.077 | 0.033 | 0.720 | 0.720 |
| 30 Oct 2011 | 55864 | 0.070 | 0.032 | 0.668 | 0.657 |
| 29 Nov 2011 | 55894 | 0.101 | - | 0.683 | 0.639 |
| 29 Dec 2011 | 55924 | 0.131 | - | 0.702 | 0.684 |
