Subject: Re: [sloan-25mlog 5191] 2.5m obslog 20200821 (SJD 59083)
From: Kaike Pan
Date: Sat, 22 Aug 2020 07:40:20 -0600
> On Aug 22, 2020, at 6:35 AM, kinemuchi@apo.nmsu.edu wrote:
>=20
>=20
>                       APACHE POINT OBSERVATORY SDSS 2.5M
>=20
>                                 OBSERVING LOG
>                          Friday August 21, 2020
>=20
>                                  (SJD 59083)
>=20
> ----  Observing Team ----
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> Katie Grabowski
> Karen Kinemuchi
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> Kaike Pan (remote, APOGEE dithers)
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> ---- Observing Plan ----
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>=20
> Fri 21 AUG 2020    59083.0   0.14    02:52  11:21    17:53  02:22     =
----    MaNGA ( 8.5 h)=20
>=20
>=20
> ---- Observing Summary ----
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> Delayed opening due to rain, high wind, and clouds.  Smoke on site =
around 07:30Z.
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> Opened at 8:24Z
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> MaNGA lost 5.75 hours.
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> MANGA OBSERVING:
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
>=20
> Cart 6 (Plate 12696) - Offset RA=3D-23", DEC=3D-2"; 2xNSE + APOGEE =
6xAB --> DONE!
> Missing fibers: [181, 211, 273]
> Faint fibers:   [15, 34, 105, 121, 127, '151 - 180', 289]
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> Cart 1 (Plate 12769) - Offset RA=3D-11", DEC=3D+24"; 1xNS + APOGEE =
2XAB --> not done
> Missing fibers: [211, 273]
> Faint fibers:   [136, 148, '151 - 180', 227]
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> APOGEE OBSERVING (MORNING TWILIGHT):
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> Cart 9 (Plate 12139; Field=3DK2_C4_173-23_btx) - Spiral pattern.  =
Offset RA=3D-26"
> Dec=3D-3".  2xAB --> not done.
> Missing fibers: [36, '151 - 180', 205, 211, 245, 273]
> Faint fibers:   []
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> NOTES TO DAY STAFF AND DEVELOPERS:
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
>=20
> * Kaike exercised the APOGEE dither mechanism in the afternoon.  =
Dither offsets
> from the night's data range from 0.25 to 0.45.
To clarify, We didn=E2=80=99t excise the dither mechanism yesterday. The =
dither mechanism didn=E2=80=99t move
in the first set of evening cal, so Katie and I just took another set of =
arc, and got |A-B| > 0.3 pixel.
Considering the science exposures from the previous night are mostly =
fine, and inconsistency of
dither mechanism motion, we decided not to excise the mechanism =
yesterday. The plan is that we
would perform a clean move today if we have too many AB pairs with |A=3DB|=
 =20
> * High 0.3micron dust readings due to smoke.  Dust accumulation=20
> while open: ~3500
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> * MaNGA team: Please check the exposures for Plate 12769 (Cart 1).  =
Petunia
> did not count these exposures towards completion this evening for some=20=
> unknown reason.
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> * Petunia Pluggings page seems to be down.  We cannot generate a plug =
request.
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> ---- Observing Log ----
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