FTS Report on DOY 201

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

55752  191      1.036    -0.102    -1.797    -1.139    -2.832
55753  192      1.028    -0.106    -1.801    -1.136    -2.829
55754  193      1.021    -0.108$   -1.804#   -1.130$   -2.825#
55755  194      1.010     0.011    -1.784    -1.000    -2.794
55756  195      0.873%   -0.062    -1.758    -0.940%   -2.678%
55757  196     -0.080    -0.039    -1.734     0.039    -1.656
55758  197     -0.089    -0.017    -1.709     0.070    -1.621
55759  198     -0.097     0.004    -1.684     0.100    -1.587
55760  199     -0.104     0.025    -1.658     0.128    -1.554
55761  200     -0.111     0.047    -1.636     0.157    -1.524
55762  201     -0.120*    0.069*   -1.610*    0.187*   -1.489*
55763  202     -0.128*    0.090*   -1.585*    0.217*   -1.456*
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 55752 to 55761
 -----------------------------------------------------------------------
|                                 | DELTA-F/F | UNCERTAINTY | STD. DEV. |
|           MEASUREMENT           |  (E-13)   | (+/- E-13)  |  (nsec.)  |
|---------------------------------|-----------|-------------|-----------|
|   SPC10 RELATIVE TO UTC(NIST)   |   -0.911  |    0.024    |   0.814   |
|   SPC40 RELATIVE TO UTC(NIST)   |    2.500  |    0.016    |   0.549   |
|   SPC60 RELATIVE TO UTC(NIST)   |    2.870  |    0.020    |   0.699   |
|   SPC40 RELATIVE TO SPC10       |    3.400  |    0.028    |   0.958   |
|   SPC60 RELATIVE TO SPC10       |    3.825  |    0.039    |   1.357   |
 -----------------------------------------------------------------------

III.
Comments: 
$ On DOY 193 (MJD 55754), SPC 40 online maser frequency was adjusted by 3.5*E-13 seconds.	
# On DOY 193 (MJD 55754), SPC 60 online maser frequency was adjusted by 3.7*E-13 seconds.
% On DOY 195 (MJD 55756), SPC 10 experienced some problem, the time needed to be reset to near zero. The frequency may also be affected.

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 152 (MJD 55713), SPC 10 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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