FTS Report on DOY 108

I.  The following are clock offsets, in microseconds between the clocks
at each DSN complex and each complex relative to UTC(NIST).  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      NIST      NIST      NIST      SPC10     SPC10

55659  098     -0.817    -0.441    -2.246     0.374    -1.429
55660  099     -0.810    -0.421    -2.230     0.386    -1.423
55661  100     -0.800    -0.404    -2.213     0.394    -1.414
55662  101     -0.791    -0.387    -2.198     0.402    -1.406
55663  102     -0.782    -0.369    -2.186     0.411    -1.404
55664  103     -0.775    -0.353    -2.171     0.421    -1.396
55665  104     -0.570$   -0.332    -2.154     0.221$   -1.606$
55666  105     -0.085    -0.317    -2.141    -0.234    -2.057
55667  106     -0.073    -0.300    -2.127    -0.229    -2.054
55668  107     -0.062    -0.283    -2.113    -0.223    -2.052
55669  108     -0.051*   -0.264*   -2.097*   -0.218*   -2.048*
55670  109     -0.040*   -0.247*   -2.082*   -0.212*   -2.045*
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 55659 to 55668
 -----------------------------------------------------------------------
|                                 | DELTA-F/F | UNCERTAINTY | STD. DEV. |
|           MEASUREMENT           |  (E-13)   | (+/- E-13)  |  (nsec.)  |
|---------------------------------|-----------|-------------|-----------|
|   SPC10 RELATIVE TO UTC(NIST)   |    1.296  |    0.003    |   0.058   |
|   SPC40 RELATIVE TO UTC(NIST)   |    2.027  |    0.060    |   1.042   |
|   SPC60 RELATIVE TO UTC(NIST)   |    1.699  |    0.075    |   1.299   |
|   SPC40 RELATIVE TO SPC10       |    0.654  |    0.018    |   0.318   |
|   SPC60 RELATIVE TO SPC10       |    0.341  |    0.015    |   0.260   |
 -----------------------------------------------------------------------

III.
Comments: 
On DOY 357 (MJD 55553), SPC 40 HM2 (the new Symmetricom Maser) was put online.  
On DOY 060 (MJD 55621), SPC 60 HM2 (Symmetricom) was put online.

$ On DOY 104 (MJD 55665), SPC 10 maintenance personnel inadvertently tripped up the standards while removing unused FTS cables.

NOTES: All DSN data are from the new multichannel receivers.
SPC 10 and SPC 60 offsets are commonviewed with NIST and with each other.
SPC 40 offsets are all-in-viewed with NIST and with SPC 10. 

FTS Contacts: Connie Dang (626)305-6194 :: Linh La (626)305-6184



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