Subject: Re: [sloan-25mlog 3983] 2.5m obslog 20180411 (SJD 58220)
From: John Downey
Date: Thu, 12 Apr 2018 07:03:05 -0600
>=20
> NOTES:
> =3D=3D=3D=3D=3D=3D
>=20
>=20
> - Engineers: would you please check the "tightness" of the FF petals? =
A few of
> them seem to be rattling with barely any wind and triggering the =
sensor that
> places them in an intermediate state.=20
We'll take a look, but I'm not sure what this means - there are no =
sensors, the petals start and stop on limit switches alone.
> - Cart 1 has no usable acquisition fibers. We tried to observe it at =
the end of
> the night, but had a difficult time centering up on the field. We saw =
many stars
> down many different fibers, but the guider/rotator could not center up =
on all of
> them. Offset was 10" in RA and 20" in Dec. We ran out of time and were =
not able
> to observe this plate. APOGEE lost 0.3 hrs due to this hardware =
problem.=20
I typically wait until the cartridge is being replugged, but if apogee =
is ok with unplugging and replugging it today, I can replace them this =
morning.=