FTS Report on DOY 245

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

55796  235     -0.417     0.532    -0.932     0.947    -0.513
55797  236     -0.425     0.537    -0.913     0.961    -0.487
55798  237     -0.435    -0.091@   -0.895     0.342@   -0.460
55799  238     -0.442    -0.126    -0.880     0.314    -0.437
55800  239     -0.451    -0.123    -0.863     0.327    -0.411
55801  240     -0.460    -0.117    -0.845     0.341    -0.383
55802  241     -0.468    -0.114    -0.829     0.352    -0.360
55803  242     -0.475    -0.112    -0.811     0.361    -0.336
55804  243     -0.484    -0.109    -0.794     0.374    -0.309
55805  244     -0.492    -0.109    -0.779     0.382    -0.286
55806  245     -0.501*   -0.103*   -0.761*    0.395*   -0.259*
55807  246     -0.509*   -0.100*   -0.744*    0.406*   -0.234*
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 55796 to 55805
 -----------------------------------------------------------------------
|                                 | DELTA-F/F | UNCERTAINTY | STD. DEV. |
|           MEASUREMENT           |  (E-13)   | (+/- E-13)  |  (nsec.)  |
|---------------------------------|-----------|-------------|-----------|
|   SPC10 RELATIVE TO UTC(NIST)   |   -0.965  |    0.008    |   0.644   |
|   SPC40 RELATIVE TO UTC(NIST)   |    0.353  |    0.020    |   1.517   |
|   SPC60 RELATIVE TO UTC(NIST)   |    1.964  |    0.011    |   0.857   |
|   SPC40 RELATIVE TO SPC10       |    1.301  |    0.024    |   1.861   |
|   SPC60 RELATIVE TO SPC10       |    2.926  |    0.015    |   1.170   |
 -----------------------------------------------------------------------

III. Comments: 
@Global power outage in SPC40 on DOY 237 0100 to 1300 UTC. 
This is to allow for an ordered transition from the old power distribution system to the new 'busducting' system. 
The MCAs was started and re-synced to GPS time at 1000 UTC, approximately. 
The offset was less than -70nS. 

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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