Subject: Re: [sdss3-25mlog 973] 2.5m obslog 20121212 (MJD 56274)
From: Kaike Pan
Date: Thu, 13 Dec 2012 07:11:25 -0700
On Dec 13, 2012, at 5:55 AM, kinemuchi@apo.nmsu.edu wrote:
>=20
>                       APACHE POINT OBSERVATORY SDSS 2.5M
>=20
>                                 OBSERVING LOG
>                          Wednesday December 12, 2012
>=20
>                                  (MJD 56274)
>=20
> ----  Observing Team ----
>=20
> Dmitry Bizyaev
> Karen Kinemuchi
>=20
> Kaike Pan (day)
>=20
> ---- Observing Plan ----
>=20
> 12 Dec 2012  56274.0  0.01  01:11 12:44  23:36 11:11  BOSS  11.6 hours
>=20
>=20
> ---- Observing Summary ----
>=20
> Collimate test data was collected during the day.
>=20
> Per David's request, collimation was checked on cart 17, everything is =
fine.
>=20
> R1 focus ring was adjusted by 35 degrees to prevent hit the collimator =
limit.
> BOSS Observing:
> Cart 10 (Plate 6582) -- COMPLETE!
> Cart 13 (Plate 6127) -- COMPLETE!  WSIGMA for R1 is yellow for the arc
> Cart 11 (Plate 6257) -- COMPLETE!  WSIGMA for R1 is yellow for the arc
> Cart 12 (Plate 6781) -- COMPLETE!
> Cart 14 (Plate 5780) -- COMPLETE!
> Cart 15 (Plate 5796) -- COMPLETE!  WSIGMA for R1 is yellow for the arc
> Cart 16 (Plate 6458) -- COMPLETE!  WSIGMA for R1 is yellow for the arc
> Cart 18 (Plate 6429) -- COMPLETE! =20
> Cart 17 (Plate 6421) -- COMPLETE!  WSIGMA for R1 is yellow for the arc
Tonight is a little bit warmer, at ~ 0C. Xsigma and Wsigma for SP2 are =
all within
spec. Another indication of yellow/red sigmas we had in past nights are =
due to
cold weather.=20
  During the day, R1 focus ring were adjusted by 35 degrees to prevent =
from hitting=20
collimator limit on SP1. I suspect that the resetting focus ring may =
shift the R1 offset
solution used by quick hartmann a little.=20
> A perfect night!  No problems, all BOSS plates got extra signal, =
seeing between
> 1.0 and 1.5", no wind and clear skies. =20
>=20
> The Geminid meteor shower was very nice!
>=20