FTS Report on DOY 023

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

55939  013     -2.438    -0.464     0.398     1.973     2.836
55940  014     -2.458    -0.479     0.397     1.977     2.854
55941  015     -2.479    -0.493     0.399     1.984     2.877
55942  016     -2.501    -0.512     0.397     1.988     2.898
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     -2.625    -0.528     0.390     2.096     3.015
55949  023     -2.646*   -0.513*    0.392*    2.133*    3.036*
55950  024     -2.666*   -0.499*    0.391*    2.170*    3.056*
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 55939 to 55948
 -----------------------------------------------------------------------
|                                 | DELTA-F/F | UNCERTAINTY | STD. DEV. |
|           MEASUREMENT           |  (E-13)   | (+/- E-13)  |  (nsec.)  |
|---------------------------------|-----------|-------------|-----------|
|   SPC10 RELATIVE TO UTC(NIST)   |   -2.402  |    0.009    |   0.726   |
|   SPC40 RELATIVE TO UTC(NIST)   |    1.638# |    0.020#   |   1.588#  |
|   SPC60 RELATIVE TO UTC(NIST)   |   -0.085  |    0.018    |   1.415   |
|   SPC40 RELATIVE TO SPC10       |    4.219# |    0.017#   |   1.299#  |
|   SPC60 RELATIVE TO SPC10       |    2.305  |    0.018    |   1.370   |
 -----------------------------------------------------------------------

III.
Comments: 
@ SPC40 HM2 frequency was changed by 4.0e-13 on DOY 019 (MJD 55945). 
# SPC 40 frequency offset was calculated from MJD 55945 to 55948.

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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