Subject: Re: [sloan-25mlog 5278] 2.5m obslog 20201223 (SJD 59207)
From: Kaike Pan
Date: Thu, 24 Dec 2020 08:49:22 -0700
> On Dec 24, 2020, at 6:10 AM, ccarter@apo.nmsu.edu wrote:
>=20
>=20
>                       APACHE POINT OBSERVATORY SDSS 2.5M
>=20
>                                 OBSERVING LOG
>                          Wednesday December 23, 2020
>=20
>                                  (SJD 59207)
>=20
> ----  Observing Team ----
>=20
> Viktor Malanushenko
> Christian Carter
>=20
>=20
>=20
> ---- Observing Plan ----
>=20
> Wed 23 DEC 2020    59207.0   0.71    01:02  12:51    00:10  12:01     =
----    KK=20
>       MWM until 09:07 ( 8.1 h), then BHM ( 3.7 h)=20
>=20
>=20
> ---- Observing Summary ----
>=20
> Clear with 2.0"+ seeing. Windy and cold. MWM lost 5.6 hours for high =
winds and
> low temperatures. BHM lost 0.2 hours for a blue ring adjustment.
>=20
>=20
> MWM Observations
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
>=20
> Cart 4; Plate 15076; Field GG_000; MWM-led; Incomplete
>        APOGEE: 8xA
>        BOSS: 4x900sec
>        Missing fibers: [20, 39, 151, 186, 193, 211, 241, 273, 278]
>        Faint fibers:   ['121 - 128', 131, 134, 136, '181 - 183', 185, =
'187 -
>        192', '194 - 197', 199, '201 - 203', 207, 209, 234]
>=20
> Cart 2; Plate 15106; Field YSO_002; MWM-led; Incomplete
>        APOGEE: 8xA
>        BOSS: 4x900sec
>        Missing fibers: [38, 57, 59, 101, 137, 190, 198, 211, 259, 273]
>        Faint fibers:   ['121 - 136', '138 - 150']
>=20
>=20
> BHM Observations
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> Cart 9; Plate 15152; Field eFEDS_135.84_+01.66; BHM-led; Incomplete
>        APOGEE: 12xA
>        BOSS: 6x900sec
>        Missing fibers: [36, 211, 245, 273]
>        Faint fibers:   ['121 - 129', 131, '133 - 143', '146 - 150', =
170, '212 -
>        240']
>=20
> Cart 8; Plate 15071; Field RM_COSMOS; BHM-led; Incomplete
>        APOGEE: 8xA
>        BOSS: 4x900sec
>        Missing fibers: [35, 184, 211, 273]
>        Faint fibers:   ['121 - 173', '175 - 180']
>=20
>=20
> Notes
> =3D=3D=3D=3D=3D
> (1) SoS issued several of the following error on Cart 4:
>    sdR-r1-00321606.fit.gz: ABORT: Unable to reduce this science =
exposure (need arc)
>    We took a set of post-cals before switching from Cart 4. This issue =
seems
>    exclusive to Cart 4 and we suspect it may be related to tonight =
being
>    Cart 4's first night post-conversion.
XMID position on this cartridge is 1000 pixel off. Sounds like the =
relative position of the slitplate to the slithead
mounting needs an adjustment.