FTS Report on DOY 027

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

55943  017     -2.522    -0.529     0.397     1.991     2.918
55944  018     -2.542    -0.543     0.397     1.998     2.937
55945  019     -2.563    -0.561@    0.396     2.000@    2.957
55946  020     -2.582    -0.556     0.395     2.023     2.975
55947  021     -2.603    -0.540     0.393     2.062     2.995
55948  022     -2.626    -0.528     0.390     2.096     3.015
55949  023     -2.646    -0.507     0.392     2.136     3.036
55950  024     -2.668    -0.485     0.387     2.182     3.055
55951  025     -2.691    -0.472     0.388     2.217     3.082
55952  026     -2.709    -0.452     0.386     2.256     3.096
55953  027     -2.731*   -0.435*    0.385*    2.295*    3.116*
55954  028     -2.752*   -0.418*    0.384*    2.334*    3.136*
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 55943 to 55952
 -----------------------------------------------------------------------
|                                 | DELTA-F/F | UNCERTAINTY | STD. DEV. |
|           MEASUREMENT           |  (E-13)   | (+/- E-13)  |  (nsec.)  |
|---------------------------------|-----------|-------------|-----------|
|   SPC10 RELATIVE TO UTC(NIST)   |   -2.429  |    0.015    |   1.196   |
|   SPC40 RELATIVE TO UTC(NIST)   |    2.037# |    0.034#   |   2.616#  |
|   SPC60 RELATIVE TO UTC(NIST)   |   -0.148  |    0.015    |   1.165   |
|   SPC40 RELATIVE TO SPC10       |    4.518# |    0.032#   |   2.475#  |
|   SPC60 RELATIVE TO SPC10       |    2.314  |    0.027    |   2.136   |
 -----------------------------------------------------------------------

III.
Comments: 
@ On DOY 019 (MJD 55945), SPC 40 HM2 frequency was adjusted by 4*E-13.
# SPC 40 frequency offset was calculated from MJD 55945 to 55950.

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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