FTS Report on DOY 188

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

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     -0.372    -0.185    -1.007     0.185    -0.635
56113  187     -0.384    -0.187    -0.986     0.196    -0.599
56114  188     -0.395*   -0.187*   -0.965*    0.208*   -0.569*
56115  189     -0.407*   -0.187*   -0.944*    0.220*   -0.536*
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 56104 to 56113
 -----------------------------------------------------------------------
|                                 | DELTA-F/F | UNCERTAINTY | STD. DEV. |
|           MEASUREMENT           |  (E-13)   | (+/- E-13)  |  (nsec.)  |
|---------------------------------|-----------|-------------|-----------|
|   SPC10 RELATIVE TO UTC(NIST)   |   -1.408  |    0.016    |   1.217   |
|   SPC40 RELATIVE TO UTC(NIST)   |   -0.080  |    0.012    |   0.972   |
|   SPC60 RELATIVE TO UTC(NIST)   |    2.418  |    0.009    |   0.711   |
|   SPC40 RELATIVE TO SPC10       |    1.364  |    0.006    |   0.491   |
|   SPC60 RELATIVE TO SPC10       |    3.835  |    0.018    |   1.394   |
 -----------------------------------------------------------------------

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



                                  Page 1