FTS Report on DOY 112

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

55663  102     -0.782    -0.369    -2.186     0.411    -1.404
55664  103     -0.775    -0.353    -2.171     0.421    -1.396
55665  104     -0.570$   -0.332    -2.154     0.221$   -1.606$
55666  105     -0.085    -0.317    -2.141    -0.234    -2.057
55667  106     -0.073    -0.300    -2.127    -0.229    -2.054
55668  107     -0.062    -0.283    -2.113    -0.223    -2.052
55669  108     -0.055    -0.270    -2.099    -0.217    -2.044
55670  109     -0.048    -0.253    -2.087    -0.207    -2.040
55671  110     -0.041    -0.236    -2.075    -0.198    -2.036
55672  111     -0.034    -0.222    -2.059    -0.190    -2.025
55673  112     -0.024*   -0.204*   -2.045*   -0.184*   -2.023*
55674  113     -0.015*   -0.187*   -2.031*   -0.177*   -2.018*
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 55663 to 55672
 -----------------------------------------------------------------------
|                                 | DELTA-F/F | UNCERTAINTY | STD. DEV. |
|           MEASUREMENT           |  (E-13)   | (+/- E-13)  |  (nsec.)  |
|---------------------------------|-----------|-------------|-----------|
|   SPC10 RELATIVE TO UTC(NIST)   |    0.955  |    0.040    |   2.082   |
|   SPC40 RELATIVE TO UTC(NIST)   |    1.890  |    0.035    |   1.802   |
|   SPC60 RELATIVE TO UTC(NIST)   |    1.607  |    0.028    |   1.446   |
|   SPC40 RELATIVE TO SPC10       |    0.871  |    0.035    |   1.798   |
|   SPC60 RELATIVE TO SPC10       |    0.606  |    0.044    |   2.299   |
 -----------------------------------------------------------------------

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.

$ On DOY 104 (MJD 55665), SPC 10 maintenance personnel inadvertently tripped up the standards while removing unused FTS cables.


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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