FTS Report on DOY 254

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

57997  244     -0.423    -1.264     0.802    -0.840     1.229
57998  245     -0.418    -1.286     0.813    -0.867     1.234
57999  246     -0.406    -1.304     0.828    -0.898     1.236
58000  247     -0.401    -1.325     0.839    -0.924     1.243
58001  248     -0.394    -1.347     0.850    -0.953     1.248
58002  249     -0.388    -1.370     0.861    -0.982     1.251
58003  250     -0.383    -1.392     0.873    -1.010     1.258
58004  251     -0.377    -1.412     0.884    -1.035     1.264
58005  252     -0.372    -1.438     0.895    -1.066     1.269
58006  253     -0.365    -1.461     0.905    -1.097     1.273
58007  254     -0.357*   -1.480*    0.918*   -1.123*    1.278*
58008  255     -0.351*   -1.502*    0.930*   -1.152*    1.283*
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 57997 to 58006
 -----------------------------------------------------------------------
|                                 | DELTA-F/F | UNCERTAINTY | STD. DEV. |
|           MEASUREMENT           |  (E-13)   | (+/- E-13)  |  (nsec.)  |
|---------------------------------|-----------|-------------|-----------|
|   SPC10 RELATIVE TO UTC(USNO)   |    0.745  |    0.022    |   1.721   |
|   SPC40 RELATIVE TO UTC(USNO)   |   -2.533  |    0.027    |   2.088   |
|   SPC60 RELATIVE TO UTC(USNO)   |    1.336  |    0.017    |   1.350   |
|   SPC40 RELATIVE TO SPC10       |   -3.281  |    0.018    |   1.412   |
|   SPC60 RELATIVE TO SPC10       |    0.582  |    0.015    |   1.136   |
 -----------------------------------------------------------------------

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