FTS Report on DOY 186

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

56102  176     -0.254    -0.105    -1.219     0.148    -0.967
56103  177     -0.263    -0.104    -1.195     0.157    -0.932
56104  178     -0.276    -0.102    -1.175     0.172    -0.899
56105  179     -0.285    -0.096#   -1.153     0.188#   -0.866
56106  180     -0.297    -0.182    -1.131     0.114    -0.834
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     -0.368*   -0.184*   -1.006*    0.184*   -0.637*
56113  187     -0.380*   -0.184*   -0.985*    0.196*   -0.604*
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 56102 to 56111
 -----------------------------------------------------------------------
|                                 | DELTA-F/F | UNCERTAINTY | STD. DEV. |
|           MEASUREMENT           |  (E-13)   | (+/- E-13)  |  (nsec.)  |
|---------------------------------|-----------|-------------|-----------|
|   SPC10 RELATIVE TO UTC(NIST)   |   -1.345  |    0.015    |   1.129   |
|   SPC40 RELATIVE TO UTC(NIST)   |   -0.041  |    0.008    |   0.641   |
|   SPC60 RELATIVE TO UTC(NIST)   |    2.441  |    0.016    |   1.219   |
|   SPC40 RELATIVE TO SPC10       |    1.359  |    0.006    |   0.491   |
|   SPC60 RELATIVE TO SPC10       |    3.801  |    0.010    |   0.740   |
 -----------------------------------------------------------------------

III.
Comments: 
# On DOY 179 (MJD 56105), SPC 40 had some worn out parts of the FRD replaced, necessitating a resynch of the MCA. 
The time could be off by 100 nanoseconds.

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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