FTS Report on DOY 098 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 55649 088 -0.860 -0.554 -2.415 0.304 -1.556 55650 089 -0.856 -0.531 -2.395 0.323 -1.541 55651 090 -0.851 -0.509 -2.377 0.341 -1.526 55652 091 -0.848 -0.488 -2.363 0.357 -1.520 55653 092 -0.844 -0.463 -2.342 0.379 -1.498 55654 093 -0.842 -0.440 -2.323 0.400 -1.481 55655 094 -0.837 -0.424 -2.308 0.411 -1.471 55656 095 -0.831 -0.411# -2.292 0.417# -1.461 55657 096 -0.824 -0.476 -2.273 0.345 -1.450 55658 097 -0.819 -0.458 -2.262 0.359 -1.443 55659 098 -0.817* -0.410* -2.240* 0.404* -1.423* 55660 099 -0.813* -0.399* -2.223* 0.412* -1.410* 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 55649 to 55658 ----------------------------------------------------------------------- | | DELTA-F/F | UNCERTAINTY | STD. DEV. | | MEASUREMENT | (E-13) | (+/- E-13) | (nsec.) | |---------------------------------|-----------|-------------|-----------| | SPC10 RELATIVE TO UTC(NIST) | 0.511 | 0.021 | 1.661 | | SPC40 RELATIVE TO UTC(NIST) | 1.367 | 0.371 | 28.835 | | SPC60 RELATIVE TO UTC(NIST) | 1.996 | 0.029 | 2.270 | | SPC40 RELATIVE TO SPC10 | 0.855 | 0.390 | 30.303 | | SPC60 RELATIVE TO SPC10 | 1.501 | 0.054 | 4.160 | ----------------------------------------------------------------------- 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 095 (MJD 55656), SPC 40 Air Conditioning failed in FTS room (~33C degrees), causing both FTS receivers to fail and needed to be reset. 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