FTS Report on DOY 266

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

56548  256      0.090    -1.105     0.842    -1.195     0.757
56549  257      0.097    -1.078     0.858    -1.175     0.764
56550  258      0.102    -1.053     0.872    -1.154     0.773
56551  259      0.106    -1.028     0.887    -1.134     0.785
56552  260      0.110    -1.002     0.903    -1.111     0.797
56553  261      0.113    -0.979     0.916    -1.092     0.807
56554  262      0.121    -0.955     0.931    -1.075     0.813
56555  263      0.125    -0.934     0.944    -1.058     0.821
56556  264      0.127    -0.909     0.958    -1.036     0.833
56557  265      0.131    -0.886     0.972    -1.016     0.843
56558  266      0.137*   -0.860*    0.987*   -0.996*    0.852*
56559  267      0.142*   -0.835*    1.002*   -0.976*    0.862*
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 56548 to 56557
 -----------------------------------------------------------------------
|                                 | DELTA-F/F | UNCERTAINTY | STD. DEV. |
|           MEASUREMENT           |  (E-13)   | (+/- E-13)  |  (nsec.)  |
|---------------------------------|-----------|-------------|-----------|
|   SPC10 RELATIVE TO UTC(USNO)   |    0.525  |    0.019    |   1.447   |
|   SPC40 RELATIVE TO UTC(USNO)   |    2.801  |    0.025    |   1.927   |
|   SPC60 RELATIVE TO UTC(USNO)   |    1.664  |    0.014    |   1.119   |
|   SPC40 RELATIVE TO SPC10       |    2.283  |    0.023    |   1.811   |
|   SPC60 RELATIVE TO SPC10       |    1.120  |    0.021    |   1.643   |
 -----------------------------------------------------------------------

III.
Comments: 
SPC 40 GPS receiver A failed since DOY 256 (MJD 56548), SPC 40 data came from receiver B.

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