FTS Report on DOY 087

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

55638  077     -0.895    -0.812    -2.627     0.081    -1.733
55639  078     -0.892    -0.786    -2.606     0.104    -1.715
55640  079     -0.888    -0.762    -2.586     0.124    -1.698
55641  080     -0.887    -0.738    -2.565     0.147    -1.678
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     -0.866*   -0.575*   -2.430*    0.289*   -1.564*
55649  088     -0.863*   -0.552*   -2.410*    0.309*   -1.548*
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 55638 to 55647
 -----------------------------------------------------------------------
|                                 | DELTA-F/F | UNCERTAINTY | STD. DEV. |
|           MEASUREMENT           |  (E-13)   | (+/- E-13)  |  (nsec.)  |
|---------------------------------|-----------|-------------|-----------|
|   SPC10 RELATIVE TO UTC(NIST)   |    0.338  |    0.009    |   0.666   |
|   SPC40 RELATIVE TO UTC(NIST)   |    2.714  |    0.013    |   1.048   |
|   SPC60 RELATIVE TO UTC(NIST)   |    2.262  |    0.018    |   1.424   |
|   SPC40 RELATIVE TO SPC10       |    2.381  |    0.018    |   1.364   |
|   SPC60 RELATIVE TO SPC10       |    1.922  |    0.023    |   1.768   |
 -----------------------------------------------------------------------

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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