FTS Report on DOY 191

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

56107  181     -0.308    -0.182    -1.111     0.125    -0.802
56108  182     -0.321    -0.183    -1.090     0.137    -0.768
56109  183     -0.334    -0.182    -1.070     0.150    -0.735
56110  184     -0.345    -0.182    -1.048     0.161    -0.703
56111  185     -0.358    -0.184    -1.029     0.172    -0.670
56112  186     -0.372    -0.185    -1.007     0.185    -0.635
56113  187     -0.384    -0.187    -0.986     0.196    -0.599
56114  188     -0.398    -0.188    -0.328$    0.210     0.049$
56115  189     -0.410    -0.186     0.013     0.222     0.423
56116  190     -0.424    -0.190     0.032     0.233     0.458
56117  191     -0.436*   -0.190*   -0.031*    0.245*    0.400*
56118  192     -0.449*   -0.190*    0.102*    0.257*    0.545*
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 56107 to 56116
 -----------------------------------------------------------------------
|                                 | DELTA-F/F | UNCERTAINTY | STD. DEV. |
|           MEASUREMENT           |  (E-13)   | (+/- E-13)  |  (nsec.)  |
|---------------------------------|-----------|-------------|-----------|
|   SPC10 RELATIVE TO UTC(NIST)   |   -1.482  |    0.011    |   0.842   |
|   SPC40 RELATIVE TO UTC(NIST)   |   -0.094  |    0.014    |   1.071   |
|   SPC60 RELATIVE TO UTC(NIST)   |   15.382  |    3.180    | 247.313   |
|   SPC40 RELATIVE TO SPC10       |    1.392  |    0.009    |   0.665   |
|   SPC60 RELATIVE TO SPC10       |   16.797  |    3.169    | 246.407   |
 -----------------------------------------------------------------------

III.
Comments: 
$ On DOY 188 (MJD 56114), SPC 60 replaced worn fuses of the 100 MHz Distribution Assembly, and re-synced the time with the GPS.

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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