FTS Report on DOY 156

I.  The following are clock offsets, in microseconds between the clocks
at each DSN complex and each complex relative to UTC(USNO).  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      USNO      USNO      USNO      SPC10     SPC10

57899  146     -1.870     0.595    -0.854     2.464     1.018
57900  147     -1.895     0.579    -0.873     2.473     1.024
57901  148     -1.916     0.568    -0.892     2.483     1.025
57902  149     -1.944     0.549    -0.910     2.492     1.036
57903  150     -1.966#    0.532    -0.930     2.498#    1.038#
57904  151     -1.954     0.514    -0.941$    2.469     1.016$
57905  152     -1.929     0.499    -0.917     2.428     1.015
57906  153     -1.903     0.483    -0.891     2.386     1.015
57907  154     -1.877     0.466    -0.864     2.342     1.015
57908  155     -1.852     0.451    -0.839     2.302     1.015
57909  156     -1.826*    0.434*   -0.813*    2.260*    1.015*
57910  157     -1.800*    0.418*   -0.787*    2.218*    1.015*
 

II.  Frequency Offsets from linear least-squares fits on time-offsets over the period from 57899 to 57908
 -----------------------------------------------------------------------
|                                 | DELTA-F/F | UNCERTAINTY | STD. DEV. |
|           MEASUREMENT           |  (E-13)   | (+/- E-13)  |  (nsec.)  |
|---------------------------------|-----------|-------------|-----------|
|   SPC10 RELATIVE TO UTC(USNO)   |    2.970# |    0.012    |   0.423   |
|   SPC40 RELATIVE TO UTC(USNO)   |   -1.876  |    0.043    |   1.500   |
|   SPC60 RELATIVE TO UTC(USNO)   |    3.021$ |    0.011    |   0.392   |
|   SPC40 RELATIVE TO SPC10       |   -4.839# |    0.024    |   0.842   |
|   SPC60 RELATIVE TO SPC10       |   -0.010#$|    0.010    |   0.336   |
 -----------------------------------------------------------------------

III.
Comments: Values derived from linear least squares extrapolation or interpolation are indicated by (*) next to the time offset.
# On DOY 150 (MJD 57903) SPC 10 online frequency was adjusted by 6*E-13. SPC 10 related frequency offsets were calculated from DOY 151. 
$ On DOY 151 (MJD 57904) SPC 60 online frequency was ajusted by 5.3*E-13. SPC 60 related frequency offsets were calculated from DOY 152.

NOTES: All DSN data are from the new multichannel receivers.
SPC 10 and SPC 60 offsets are commonviewed with USNO and with each other.
SPC 40 offsets are all-in-viewed with USNO and with SPC 10. 

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



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