Re: fringes, fringes, fringes
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From: <John.Reynolds_at_email.protected>
Date: Sat, 20 Nov 2004 08:30:34 +1100 (EST)
Chris,
>I have just sucessfully found fringes for v131ar to Pa, Mp, At. I will try
>Hobart soon. A major step forward for this was the fringes were found
>without any manual correlation outside the RtFC software. See
Great! Was this with DAS #1 + C1/C2 cable at Parkes, or with DAS #2?
>For doing this in the future, it would be useful for observatories to
>email the clock tickphase (maser-gps) for the inital clock offsets.
Parkes and Tid invariably maintain their station time within 2uS of UTC.
Mopra is also usually within as few uS. I think Warwick may have been
having H-maser tuning probs at Narrabri - their time has been several
x10's of uS off in the recent past. The offset at Mopra and AT is
visible on the ATDC display - if observers see an offset > 2uS they could
flag it.
Cheers,
John R
Received on 2004-11-20 08:30:51
Date: Sat, 20 Nov 2004 08:30:34 +1100 (EST)
Chris,
>I have just sucessfully found fringes for v131ar to Pa, Mp, At. I will try
>Hobart soon. A major step forward for this was the fringes were found
>without any manual correlation outside the RtFC software. See
Great! Was this with DAS #1 + C1/C2 cable at Parkes, or with DAS #2?
>For doing this in the future, it would be useful for observatories to
>email the clock tickphase (maser-gps) for the inital clock offsets.
Parkes and Tid invariably maintain their station time within 2uS of UTC.
Mopra is also usually within as few uS. I think Warwick may have been
having H-maser tuning probs at Narrabri - their time has been several
x10's of uS off in the recent past. The offset at Mopra and AT is
visible on the ATDC display - if observers see an offset > 2uS they could
flag it.
Cheers,
John R
Received on 2004-11-20 08:30:51