FTS Report on DOY 263

I.  The following are clock offsets, in microseconds between the clocks
at each DSN complex and each complex relative to UTC(USNO).  The offset
is a mean of readings using several GPS space vehicles in common view.

                SPC10     SPC40     SPC60     SPC40     SPC60
                MINUS     MINUS     MINUS     MINUS     MINUS
 MJD   DOY      USNO      USNO      USNO      SPC10     SPC10

57640  253     -0.004     2.142    -0.620     2.145    -0.614
57641  254     -0.002     2.141    -0.600     2.143    -0.596
57642  255     -0.001     2.142    -0.582     2.143    -0.578
57643  256      0.000     2.141    -0.561     2.142    -0.557
57644  257      0.003     2.146    -0.538     2.144    -0.537
57645  258      0.019     2.145    -0.521     2.126    -0.536
57646  259      0.047     2.147    -0.500     2.100    -0.545
57647  260      0.071     2.146    -0.482     2.075    -0.549
57648  261      0.095     2.146    -0.464     2.051    -0.555
57649  262      0.118     2.145    -0.447     2.028    -0.561
57650  263      0.143*    2.147*   -0.424*    2.003*   -0.567*
57651  264      0.168*    2.148*   -0.405*    1.978*   -0.573*
Values derived from linear least squares extrapolation or interpolation are indicated by (*) next to the time offset. 

II.  Frequency Offsets from linear least-squares fits on time-offsets over the period from 57640 to 57649
 -----------------------------------------------------------------------
|                                 | DELTA-F/F | UNCERTAINTY | STD. DEV. |
|           MEASUREMENT           |  (E-13)   | (+/- E-13)  |  (nsec.)  |
|---------------------------------|-----------|-------------|-----------|
|   SPC10 RELATIVE TO UTC(USNO)   |    2.834  |    0.037    |   1.266   |
|   SPC40 RELATIVE TO UTC(USNO)   |    0.068  |    0.038    |   1.329   |
|   SPC60 RELATIVE TO UTC(USNO)   |    2.254  |    0.054    |   1.874   |
|   SPC40 RELATIVE TO SPC10       |   -2.829  |    0.018    |   0.619   |
|   SPC60 RELATIVE TO SPC10       |   -0.698  |    0.026    |   0.903   |
 -----------------------------------------------------------------------

III.
Comments: On DOY 257 (MJD 57644) SPC 10 online Hydrogen Maser frequency was adjusted by +3*E-13. SPC 10 related frequency offsets were calculated from DOY 258 (MJD 57645).

NOTES: All DSN data are from the new multichannel receivers.
SPC 10 and SPC 60 offsets are commonviewed with USNO and with each other.
SPC 40 offsets are all-in-viewed with USNO and with SPC 10. 

FTS Contacts: Connie Dang (626)305-6194 :: Linh La (626)305-6184



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