FTS Report on DOY 110 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 55661 100 -0.800 -0.404 -2.213 0.394 -1.414 55662 101 -0.791 -0.387 -2.198 0.402 -1.406 55663 102 -0.782 -0.369 -2.186 0.411 -1.404 55664 103 -0.775 -0.353 -2.171 0.421 -1.396 55665 104 -0.570$ -0.332 -2.154 0.221$ -1.606$ 55666 105 -0.085 -0.317 -2.141 -0.234 -2.057 55667 106 -0.073 -0.300 -2.127 -0.229 -2.054 55668 107 -0.062 -0.283 -2.113 -0.223 -2.052 55669 108 -0.055 -0.270 -2.099 -0.217 -2.044 55670 109 -0.048 -0.253 -2.088 -0.207 -2.040 55671 110 -0.037* -0.234* -2.071* -0.202* -2.036* 55672 111 -0.028* -0.217* -2.057* -0.196* -2.031* 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 55661 to 55670 ----------------------------------------------------------------------- | | DELTA-F/F | UNCERTAINTY | STD. DEV. | | MEASUREMENT | (E-13) | (+/- E-13) | (nsec.) | |---------------------------------|-----------|-------------|-----------| | SPC10 RELATIVE TO UTC(NIST) | 1.059 | 0.053 | 1.815 | | SPC40 RELATIVE TO UTC(NIST) | 1.950 | 0.053 | 1.831 | | SPC60 RELATIVE TO UTC(NIST) | 1.636 | 0.034 | 1.165 | | SPC40 RELATIVE TO SPC10 | 0.765 | 0.036 | 1.250 | | SPC60 RELATIVE TO SPC10 | 0.527 | 0.037 | 1.279 | ----------------------------------------------------------------------- III. Comments: 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 104 (MJD 55665), SPC 10 maintenance personnel inadvertently tripped up the standards while removing unused FTS cables. 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 Page 1