FTS Report on DOY 030 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 57042 020 -1.078 0.082 1.232 1.159 2.311 57043 021 -1.105 0.059 1.229 1.163 2.336 57044 022 -1.125 0.050 1.233 1.175 2.361 57045 023 -1.149 0.010 1.233 1.184 2.386 57046 024 -1.174 -0.006 1.229 1.229 2.404 57047 025 -1.197 -0.005 1.229 1.192 2.427 57048 026 -1.222# -0.021 1.230 1.200# 2.453# 57049 027 -1.210 -0.041 1.227 1.168 2.437 57050 028 -1.185 -0.057 1.226 1.128 2.412 57051 029 -1.162 -0.078 1.219 1.084 2.382 57052 030 -1.138* -0.094* 1.223* 1.043* 2.355* 57053 031 -1.114* -0.111* 1.222* 1.000* 2.327* 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 57042 to 57051 ----------------------------------------------------------------------- | | DELTA-F/F | UNCERTAINTY | STD. DEV. | | MEASUREMENT | (E-13) | (+/- E-13) | (nsec.) | |---------------------------------|-----------|-------------|-----------| | SPC10 RELATIVE TO UTC(USNO) | 2.766# | 0.027 | 0.462 | | SPC40 RELATIVE TO UTC(USNO) | -1.959 | 0.460 | 7.946 | | SPC60 RELATIVE TO UTC(USNO) | -0.127 | 0.144 | 2.484 | | SPC40 RELATIVE TO SPC10 | -4.884# | 0.067 | 1.155 | | SPC60 RELATIVE TO SPC10 | -3.223# | 0.092 | 1.588 | ----------------------------------------------------------------------- III. Comments: # on DOY 026/1620 UTC (MJD 57048), SPC 10 HM frequency was adjusted by 5.8 *E-13. Frequency offset was calculated from DOY 027 (MJD 57049) 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