FTS Report on DOY 260

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

57637  250     -0.014     2.142    -0.680     2.156    -0.664
57638  251     -0.009     2.140    -0.661     2.149    -0.648
57639  252     -0.006     2.140    -0.641     2.147    -0.631
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      0.030*    2.146*   -0.480*    2.116*   -0.507*
57648  261      0.035*    2.147*   -0.460*    2.112*   -0.492*
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 57637 to 57646
 -----------------------------------------------------------------------
|                                 | DELTA-F/F | UNCERTAINTY | STD. DEV. |
|           MEASUREMENT           |  (E-13)   | (+/- E-13)  |  (nsec.)  |
|---------------------------------|-----------|-------------|-----------|
|   SPC10 RELATIVE TO UTC(USNO)   |    0.564  |    0.126    |   9.773   |
|   SPC40 RELATIVE TO UTC(USNO)   |    0.070  |    0.019    |   1.472   |
|   SPC60 RELATIVE TO UTC(USNO)   |    2.320  |    0.013    |   1.018   |
|   SPC40 RELATIVE TO SPC10       |   -0.487  |    0.121    |   9.435   |
|   SPC60 RELATIVE TO SPC10       |    1.760  |    0.132    |  10.249   |
 -----------------------------------------------------------------------

III.
Comments: On DOY 257 (MJD 57644) SPC 10 online Hydrogen Maser frequency was adjusted by +3*E-13.

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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