Subject: Re: [sdss3-25mlog 298] 2.5m obslog 20111011 (MJD 55846)
From: Wendell Jordan
Date: Wed, 12 Oct 2011 15:34:59 -0600
On Oct 12, 2011, at 6:02 AM, kpan@apo.nmsu.edu wrote:
>=20
>                       APACHE POINT OBSERVATORY SDSS 2.5M
>=20
>                                 OBSERVING LOG
>                          Tuesday October 11, 2011
>=20
>                                  (MJD 55846)
>=20
> ATTENTION: R2 needs to be filled manually every three hours.
>=20
> Problems:=20
> 1) Auto filling control circuit fails on R2. The filling valve would
> not open with "startfillseq".  We had to manual filling on R2 every =
three hours
> with the emergency camera filling unit.=20
The R2 full sensor was bad and has been replaced with a new one.  R2 now =
starts filling with startfillseq commands, and auto fills should work =
fine throughout the night.  However, a little further fine tuning may be =
necessary tomorrow as R2 tends to overfill for about one minute before =
it finally stops automatically.
I left the emergency camera fill box tied in the rotator (but NOT =
connected) as French had it this morning to be on the safe side.  =
Hopefully, the observers should not have to use it.
Wendell