FTS Report on DOY 091

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

55642  081     -0.884    -0.715    -2.547     0.168    -1.663
55643  082     -0.880    -0.693    -2.525     0.185    -1.645
55644  083     -0.878    -0.670    -2.508     0.207    -1.631
55645  084     -0.875    -0.647    -2.488     0.226    -1.613
55646  085     -0.872    -0.622    -2.471     0.248    -1.599
55647  086     -0.868    -0.599    -2.450     0.267    -1.583
55648  087     -0.864    -0.577    -2.431     0.286    -1.568
55649  088     -0.860    -0.554    -2.415     0.304    -1.556
55650  089     -0.856    -0.531    -2.395     0.323    -1.541
55651  090     -0.851    -0.509    -2.378     0.341    -1.526
55652  091     -0.849*   -0.485*   -2.358*    0.362*   -1.510*
55653  092     -0.846*   -0.462*   -2.339*    0.382*   -1.495*
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 55642 to 55651
 -----------------------------------------------------------------------
|                                 | DELTA-F/F | UNCERTAINTY | STD. DEV. |
|           MEASUREMENT           |  (E-13)   | (+/- E-13)  |  (nsec.)  |
|---------------------------------|-----------|-------------|-----------|
|   SPC10 RELATIVE TO UTC(NIST)   |    0.414  |    0.012    |   0.917   |
|   SPC40 RELATIVE TO UTC(NIST)   |    2.666  |    0.009    |   0.735   |
|   SPC60 RELATIVE TO UTC(NIST)   |    2.171  |    0.016    |   1.220   |
|   SPC40 RELATIVE TO SPC10       |    2.247  |    0.021    |   1.594   |
|   SPC60 RELATIVE TO SPC10       |    1.741  |    0.021    |   1.601   |
 -----------------------------------------------------------------------

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.


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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