FTS Report on DOY 222

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

55043  212      0.007    -1.709#    2.284    -1.718     2.278
55044  213      0.005    -1.735     2.300    -1.742     2.295
55045  214      0.003    -1.763     2.312    -1.768     2.309
55046  215      0.001    -1.793     2.327    -1.795     2.326
55047  216      0.001$   -1.824     2.344    -1.829     2.347
55048  217      0.002    -1.854     2.366    -1.858     2.364
55049  218     -0.003    -1.886     2.373    -1.885     2.376
55050  219     -0.004    -1.916     2.390    -1.913     2.395
55051  220     -0.004    -1.945     2.403    -1.943     2.406
55052  221     -0.001    -1.975     2.426    -1.976     2.427
55053  222     -0.005*   -2.004*    2.437*   -2.001*    2.443*
55054  223     -0.006*   -2.034*    2.453*   -2.030*    2.459*

II.  Frequency Offsets from linear least-squares fits on time-offsets
over the period (55043 to 55052):

|------------------------------|-----------|-------------|-----------|
|                              | DELTA-F/F | UNCERTAINTY | STD. DEV. |
|        MEASUREMENT           |   (E-13)  | (+/- E-13)  |  (nsec.)  |
|------------------------------|-----------|-------------|-----------|
|  SPC10 RELATIVE TO UTC(NIST) |  -0.121   |    0.024    |   1.852   |
|  SPC40 RELATIVE TO UTC(NIST) |  -3.472   |    0.026    |   2.059   |
|  SPC60 RELATIVE TO UTC(NIST) |   1.793   |    0.041    |   3.215   |
|  SPC40 RELATIVE TO SPC10     |  -3.348   |    0.039    |   3.044   |
|  SPC60 RELATIVE TO SPC10     |   1.912   |     0.03    |   2.314   |
|------------------------------|-----------|-------------|-----------|

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

# New multichannel receiver successfully installed at SPC 40 on DOY 212 (MJD 55043). All-in-view method was used on DOY 222, back tracked to DOY 212.
$ On DOY 216, SPC 10 station personnel installed new security software patch, accidentally overwrote current day file. There was only 1 hour worth of data recorded. Interpolation used to derive number.  

NOTES:	As of DOY 135 (MJD 54966) SPC 10 data are from the newly installed multichannel receiver commonview with NIST. 
	As of DOY 68 (MJD 54899) data from (SPC40-SPC10) and (SPC60-SPC10) are derived from direct subtraction.
	Between DOYs 120 and 158, SPC 40 TTR5 single-channel receiver failed intermittently. Interpolation was used. 	
	Then on DOY 158 (MJD 54989), it failed completely. Time offset has been derived at using data from the Time Analyzer. 
	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