FTS Report on DOY 243

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

55064  233      0.048    -3.707     2.610    -3.758     2.562
55065  234      0.050    -3.732     2.629    -3.785     2.579
55066  235      0.052    -3.760     2.645    -3.814     2.593
55067  236      0.054    -3.788     2.660%   -3.844     2.605%
55068  237      0.059    -3.817     2.676%   -3.877     2.617%
55069  238      0.065    -3.844     2.695    -3.911     2.630
55070  239     -0.202&   -3.875     2.711    -3.673&    2.913&
55071  240     -0.200    -3.903     2.725    -3.705     2.925
55072  241     -0.192    -3.933     2.748    -3.743     2.940
55073  242     -0.184    -3.965     2.759    -3.782     2.944
55074  243     -0.179*   -3.990*    2.777*   -3.818*    2.957*
55075  244     -0.173*   -4.018*    2.794*   -3.854*    2.968*

II.  Frequency Offsets from linear least-squares fits on time-offsets
over the period (55064 to 55073):

|------------------------------|-----------|-------------|-----------|
|                              | DELTA-F/F | UNCERTAINTY | STD. DEV. |
|        MEASUREMENT           |   (E-13)  | (+/- E-13)  |  (nsec.)  |
|------------------------------|-----------|-------------|-----------|
|  SPC10 RELATIVE TO UTC(NIST) |   0.708   |    0.115    |   2.207   |
|  SPC40 RELATIVE TO UTC(NIST) |  -3.322   |    0.029    |   2.248   |
|  SPC60 RELATIVE TO UTC(NIST) |   1.932   |    0.024    |   1.907   |
|  SPC40 RELATIVE TO SPC10     |  -4.255   |     0.15    |   2.894   |
|  SPC60 RELATIVE TO SPC10     |   1.234   |     0.18    |   3.459   |
|------------------------------|-----------|-------------|-----------|

III.  Comments:
* Values derived from linear least squares extrapolation or interpolation

% There were no common-view SVs between SPC 60 and SPC 10, as well as between SPC 10 and NIST for MJDs 55067-55068.
& SPC 10 FTS UPS was power cycled. The master clock was required to be reset, causing a large time step.
# On DOY 222, SPC 40 HM1 (Hydrogen Maser) source changed mode and the standard dropped out of lock. HM2 was swapped in until HM1 is sufficiently stable to be put back online. 

NOTES:	As of DOY 135 (MJD 54966) SPC 10 data are from the newly installed multichannel receiver commonview with NIST. 
	As of DOY 212 (MJD 55043) SPC 40 data are from the newly installed multichannel receiver all-in-view with NIST and with SPC 10. 


FTS Contacts:
Connie Dang (626)305-6194
Linh La	    (626)305-6184