FTS Report on DOY 265

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

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     2.145    -0.427     2.003    -0.566
57651  264      0.166     2.146    -0.408     1.981    -0.570
57652  265      0.191*    2.147*   -0.388*    1.955*   -0.577*
57653  266      0.215*    2.147*   -0.369*    1.931*   -0.582*
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 57642 to 57651
 -----------------------------------------------------------------------
|                                 | DELTA-F/F | UNCERTAINTY | STD. DEV. |
|           MEASUREMENT           |  (E-13)   | (+/- E-13)  |  (nsec.)  |
|---------------------------------|-----------|-------------|-----------|
|   SPC10 RELATIVE TO UTC(USNO)   |    2.804  |    0.024    |   1.246   |
|   SPC40 RELATIVE TO UTC(USNO)   |    0.042  |    0.027    |   1.387   |
|   SPC60 RELATIVE TO UTC(USNO)   |    2.204  |    0.037    |   1.903   |
|   SPC40 RELATIVE TO SPC10       |   -2.792  |    0.020    |   1.034   |
|   SPC60 RELATIVE TO SPC10       |   -0.639  |    0.024    |   1.239   |
 -----------------------------------------------------------------------

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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