Subject: Re: cal lamp location convention
From: Ryan Wagner
Date: Mon, 28 Jun 2021 14:52:31 -0600
That is very useful information. I will get that one swapped out during =
shutdown at some point.=20
Looks like they are reaching their end of life. This is the second one =
that has had problems.
Ryan
> On Jun 27, 2021, at 00:34, Daniel Oravetz  =
wrote:
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> Hi Ryan and all,
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> Karen and I verified the cal-lamp mapping with the reported mcp Lamp
> keyword (e.g., HgCdLamp). With the telescope parked at stow, if you're
> standing at the telescope podium laptop facing the back of the =
telescope
> (i.e., looking "through" the back of M1 towards M2), the mapping goes
> counterclockwise starting with #1 at your upper-right and ending with =
#4
> at what would be the lower-right corner of the windbaffle. So:
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> 0, 1, 1, 1 - the upper-right lamp (#1) is not lit
> 1, 0, 1, 1 - the upper-left lamp (#2) is not lit
> 1, 1, 0, 1 - the lower-left lamp (#3) is not lit
> 1, 1, 1, 0 - the lower-right lamp (#4) is not lit
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> Dan and Karen
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>> We were unable to recreate this issue and I don=C3=A2=C2=80=C2=99t =
know which one in 1 0
>> 1 1 is the lamp that is out. I was guessing that it would be the =
northeast
>> lamp, but that one turned on every time we attempted to recreate the
>> error. If it happens again please note which one and if it is a =
constant
>> or intermittent error. We cycled the lamps about 10-12 times at =
various
>> times of the day and there was not an occurrence of failure to =
illuminate
>> on the Ne lamps.
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>> Ryan
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>>> On Jun 24, 2021, at 06:08, kpan@apo.nmsu.edu wrote:
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>>> Notes:
>>> 1. One Ne lamp is not stable, please swap it out.
>>> The relevant warning: Only 3 of 4 Ne lamps turned on: 1 0 1 1 '
>>=20
>> ____________________________________________________________
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>> =
https://trac.sdss.org/tracmailman/browser/private/sloan-25mlog/index.html
>>=20
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