Table A.1
Time difference compared to GOLF measured using p modes compared to expected time difference for May 1, 1996.
| Instrument | Cadence (s) | Mid point UT | Mid point GPS | Mid point TAI | Raw time difference w.r.t. GOLF (s) | Time corrected when use of BDF (s) | Time measured with p modes |
|---|---|---|---|---|---|---|---|
| GOLFa | 60 | 00:00:30.0 | 00:00:41.0 | 00:01:00.0 | 0 | 0 | 0 |
| GONGb | 60 | 00:00:35.0 | 00:00:46.0 | 00:01:05.0 | +5 | −55 | −48d |
| MDIc | 60 | 23:59:30.0 | 23:59:41.0 | 00:00:00.0 | −60 | −60 | −48 |
| BiSONa | 40 | 00:00:20.0 | 00:00:31.0 | 00:00:50.0 | −10 | −10 | 2.8 |
| VIRGOc | 60 | 23:59:34.8 | 23:59:45.8 | 00:00:04.8 | −55.2 | −55.2 | 25 |
Notes. First column gives the instrument, the second column the cadence of the instrument, the third to fifth columns the time of the first sample in Universal Time (UT), from the Global Positioning System (GPS) and TAI references; the sixth column time difference with respect to (w.r.t.) GOLF; the seventh column gives the time corrected when comparing to GONG since GONG consortium delivers BDF filtered data; the last column gives the time difference measured with p modes.
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