FTS Report on DOY 099 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 56746 089 -0.994 0.086 1.458 1.080 2.454 56747 090 -0.973 0.070 1.448 1.044 2.425 56748 091 -0.952 0.059 1.437 1.013 2.393 56749 092 -0.931 0.042 1.428 0.974 2.361 56750 093 -0.908 0.029 1.417 0.938 2.327 56751 094 -0.886 0.015 1.405 0.902 2.295 56752 095 -0.864 0.000 1.397 0.865 2.264 56753 096 -0.838 -0.012 1.385 0.826 2.222 56754 097 -0.813 -0.025 1.377 0.788 2.191 56755 098 -0.788 -0.041 1.367# 0.746 2.174# 56756 099 -0.769* -0.055* 1.356* 0.715* 2.133* 56757 100 -0.746* -0.069* 1.346* 0.678* 2.101* 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 56746 to 56755 ----------------------------------------------------------------------- | | DELTA-F/F | UNCERTAINTY | STD. DEV. | | MEASUREMENT | (E-13) | (+/- E-13) | (nsec.) | |---------------------------------|-----------|-------------|-----------| | SPC10 RELATIVE TO UTC(USNO) | 2.642 | 0.035 | 2.687 | | SPC40 RELATIVE TO UTC(USNO) | -1.619 | 0.014 | 1.096 | | SPC60 RELATIVE TO UTC(USNO) | -1.177# | 0.011 | 0.868 | | SPC40 RELATIVE TO SPC10 | -4.268 | 0.037 | 2.896 | | SPC60 RELATIVE TO SPC10 | -3.741# | 0.060 | 4.694 | ----------------------------------------------------------------------- III. Comments: # SPC 60 scheduled power outage on DOY 098 (MJD 56765) caused both GPS receivers to stop recording. There was about 7 hours worth of data for MJD 56765. 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 Page 1