FTS Report on DOY 251

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

57628  241     -0.067     2.134    -0.874     2.201    -0.804
57629  242     -0.059     2.133    -0.852     2.192    -0.790
57630  243     -0.050     2.137    -0.830     2.187    -0.778
57631  244     -0.044     2.134    -0.811     2.179    -0.765
57632  245     -0.035     2.140    -0.786     2.175    -0.748
57633  246     -0.030     2.141    -0.763     2.170    -0.731
57634  247     -0.025     2.142    -0.743     2.167    -0.715
57635  248     -0.022     2.141    -0.722     2.162    -0.698
57636  249     -0.019     2.141    -0.700     2.159    -0.680
57637  250     -0.014     2.142    -0.680     2.156    -0.664
57638  251     -0.004*    2.144*   -0.657*    2.148*   -0.650*
57639  252      0.002*    2.146*   -0.635*    2.143*   -0.635*
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 57628 to 57637
 -----------------------------------------------------------------------
|                                 | DELTA-F/F | UNCERTAINTY | STD. DEV. |
|           MEASUREMENT           |  (E-13)   | (+/- E-13)  |  (nsec.)  |
|---------------------------------|-----------|-------------|-----------|
|   SPC10 RELATIVE TO UTC(USNO)   |    0.675  |    0.039    |   3.006   |
|   SPC40 RELATIVE TO UTC(USNO)   |    0.123  |    0.020    |   1.587   |
|   SPC60 RELATIVE TO UTC(USNO)   |    2.510  |    0.017    |   1.353   |
|   SPC40 RELATIVE TO SPC10       |   -0.568  |    0.031    |   2.394   |
|   SPC60 RELATIVE TO SPC10       |    1.827  |    0.032    |   2.472   |
 -----------------------------------------------------------------------

III.
Comments: 

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



                                  Page 1