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NIST USNO 2003 Archive
UTC(USNO) - UTC(NIST)
The United States Naval Observatory (USNO) and the National Institute of Standards and Technology (NIST) make regular comparisons of their respective time scales. These comparisons are made using GPS common-view measurements from up to approximately 10 GPS satellites. The table below lists recent differences between the two time scales.
Weekly UTC(USNO, Master Clock) - UTC(NIST)Values
| Date | MJD |
UTC(USNO)-UTC(NIST) (+/- 20 nanoseconds) |
|---|---|---|
| 2003-12-25 |
52998 |
-16 ns |
| 2003-12-18 | 52991 |
-17 ns |
| 2003-12-11 | 52984 |
-12 ns |
| 2003-12-04 | 52977 |
-13 ns |
| 2003-11-27 | 52970 |
-12 ns |
| 2003-11-20 | 52963 |
-12 ns |
| 2003-11-13 | 52956 |
-9 ns |
| 2003-11-06 | 52949 |
-7 ns |
| 2003-10-30 | 52942 |
-7 ns |
| 2003-10-23 | 52935 |
-4 ns |
| 2003-10-16 | 52928 |
-4 ns |
| 2003-10-09 | 52921 |
-4 ns |
| 2003-10-02 | 52914 |
-3 ns |
| 2003-09-25 | 52907 |
-2 ns |
| 2003-09-18 | 52900 |
-3 ns |
| 2003-09-11 | 52893 |
-2 ns |
| 2003-09-04 | 52886 |
0 ns |
| 2003-08-28 | 52879 |
0 ns |
| 2003-08-21 | 52872 |
2 ns |
| 2003-08-14 | 52865 |
4 ns |
| 2003-08-07 | 52858 |
4 ns |
| 2003-07-31 | 52851 |
3 ns |
| 2003-07-24 | 52844 |
5 ns |
| 2003-07-17 | 52837 |
6 ns |
| 2003-07-10 | 52830 |
5 ns |
| 2003-07-03 | 52823 |
5 ns |
| 2003-06-26 | 52816 |
-5 ns |
| 2003-06-19 | 52809 |
-4 ns |
| 2003-06-12 | 52802 |
-1 ns |
| 2003-06-05 | 52795 |
1 ns |
| 2003-05-29 | 52788 |
1 ns |
| 2003-05-22 | 52781 |
-3 ns |
| 2003-05-15 | 52774 |
-7 ns |
| 2003-05-08 | 52767 |
-8 ns |
| 2003-05-01 | 52760 |
-6 ns |
| 2003-04-24 | 52753 |
-6 ns |
| 2003-04-17 | 52746 |
-9 ns |
| 2003-04-10 | 52739 |
-7 ns |
| 2003-04-03 | 52732 |
-2 ns |
| 2003-03-27 | 52725 |
-4 ns |
| 2003-03-20 | 52718 |
-4 ns |
| 2003-03-13 | 52711 |
-1 ns |
| 2003-03-06 | 52704 |
2 ns |
| 2003-02-27 | 52697 |
4 ns |
| 2003-02-20 | 52690 |
1 ns |
| 2003-02-13 | 52683 |
3 ns |
| 2003-02-06 | 52676 |
3 ns |
| 2003-01-30 | 52669 |
9 ns |
| 2003-01-23 | 52662 |
9 ns |
| 2003-01-16 | 52655 |
8 ns |
| 2003-01-09 | 52648 |
8 ns |
| 2003-01-02 | 52641 |
8 ns |