From: =?UTF-8?B?Sm9zw6kgU8OhbmNoZXotR2FsbGVnbw==?=
Date: Thu, 17 May 2018 10:26:28 -0400
Subject: Re: [sloan-25mlog 4081] 2.5m obslog 20180516 (SJD 58255)
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In principle that shouldn=E2=80=99t matter. The bad exposures are excluded =
from the
rearrangement at the beginning of the process and they are not taken into
account in any way. I=E2=80=99ll have a look at this case to see why it did=
n=E2=80=99t work
as expected.
Jos=C3=A9
On May 17, 2018 at 04:27:12, Kaike Pan (kpan@apo.nmsu.edu) wrote:
> On May 17, 2018, at 5:16 AM, asimmons@apo.nmsu.edu wrote:
>
>
> APACHE POINT OBSERVATORY SDSS 2.5M
>
> OBSERVING LOG
> Wednesday May 16, 2018
>
> (SJD 58255)
>
> ---- Observing Team ----
>
> Kaike Pan
> Audrey Oravetz
>
>
> ---- Observing Plan ----
>
> Wed 16 MAY 2018 58255.0 0.02 03:14 10:45 11:50 19:23 ----
> MaNGA until 08:08 ( 4.9 h), then eBOSS ( 2.6 h)
>
>
> ---- Observing Summary ----
>
> Clear night.
>
> Cart 6, M&Ap plate 10503, 241+52_MGA; 1XNSE + 5XAB - DONE (5 completed
sets, 0
> orphaned exposures)
> Missing fibers: [105, 181, 211, 273]
> Faint fibers: [15, 34, 121, '126 - 127', 136]
> -----------------
>
> Cart 5, M&Ap plate 8260, 149+72_MGA; 2XNSE + 6XAB - DONE
> Missing fibers: [211, 273]
> Faint fibers: [106, '122 - 123', '127 - 128', 133, 135, 137, 154, 159,
257]
> -----------------
>
> Cart 17, plate 10739; 3X900 - DONE
>
> Cart 4, M&Ap plate 9892, 042+41_MGA; 1XNSE + 3XAB
> Missing fibers: [20, 39, 151, 186, 211, 241, 273, 278]
> Faint fibers: ['121 - 123', '126 - 127', 147, 284]
> -----------------
>
> Cart 16, plate 10919; 3X900 - DONE
>
> Cart 14, plate 8064; 5X900 - DONE
>
> Notes:
> =3D=3D=3D=3D=3D=3D
>
> - We originally attempted to take 1XN dither with cart 6, thinking that
the
> exposure could replace a previously taken, lower-signal N dither within
the same
> hour angle by using 'rearrange set', and finish the plate with only 1
dither
> instead of 1 complete set. 'Rearrange set' paired the newest exposure
with a
> different exposure instead, so we were forced to observe the complete NSE
set in
> order to finish the plate.
>
It is possible that "re-arrange set=E2=80=9D doesn=E2=80=99t work well on t=
his plate
because it has more than 10 bad exposures (with bad
seeing). Is it possible to have a semi-manual re-arrange sets, for example,
input four exposures and only re-arrange set among these
selected 4 exposures?
> - 1 out-of-closed loop event during transition from cart 4->16
>
> - Dust: sum=3D7405.00
>
>
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In principle that sh=
ouldn=E2=80=99t matter. The bad exposures are excluded from the rearrangeme=
nt at the beginning of the process and they are not taken into account in a=
ny way. I=E2=80=99ll have a look at this case to see why it didn=E2=80=99t =
work as expected.Jos=
=C3=A9 On May 17, 2018 at 04:27:12, Kaike=
 Pan (kpan@apo.nmsu.edu) wrote:
> On May 17, 2018, at 5:16 AM, asimmons@apo.nmsu.edu wrote:
> =20
> =20
>                       APACHE POINT OBSERVATORY SDSS 2.5M
> =20
>                                 OBSERVING LOG
>                          Wednesday May 16, 2018
> =20
>                                  (SJD 58255)
> =20
> ----  Observing Team ----
> =20
> Kaike Pan
> Audrey Oravetz
> =20
> =20
> ---- Observing Plan ----
> =20
> Wed 16 MAY 2018    58255.0   0.02    03:14  10:45    11:50  19:23 =
    ----   =20
> MaNGA until 08:08 ( 4.9 h), then eBOSS ( 2.6 h) =20
> =20
> =20
> ---- Observing Summary ----
> =20
> Clear night.
> =20
> Cart 6, M&Ap plate 10503, 241+52_MGA; 1XNSE + 5XAB - DONE (5 c=
ompleted sets, 0
> orphaned exposures)
> Missing fibers: [105, 181, 211, 273]
> Faint fibers:   [15, 34, 121, '126 - 127', 136]
> -----------------
> =20
> Cart 5, M&Ap plate 8260, 149+72_MGA; 2XNSE + 6XAB - DONE
> Missing fibers: [211, 273]
> Faint fibers:   [106, '122 - 123', '127 - 128', 13=
3, 135, 137, 154, 159, 257]
> -----------------
> =20
> Cart 17, plate 10739; 3X900 - DONE
> =20
> Cart 4, M&Ap plate 9892, 042+41_MGA; 1XNSE + 3XAB
> Missing fibers: [20, 39, 151, 186, 211, 241, 273, 278]
> Faint fibers:   ['121 - 123', '126 - 127', 147, 28=
4]
> -----------------
> =20
> Cart 16, plate 10919; 3X900 - DONE
> =20
> Cart 14, plate 8064; 5X900 - DONE
> =20
> Notes:
> =3D=3D=3D=3D=3D=3D
> =20
> - We originally attempted to take 1XN dither with cart 6, thinking=
 that the
> exposure could replace a previously taken, lower-signal N dither w=
ithin the same
> hour angle by using 'rearrange set', and finish the plate =
with only 1 dither
> instead of 1 complete set. 'Rearrange set' paired the newe=
st exposure with a
> different exposure instead, so we were forced to observe the compl=
ete NSE set in
> order to finish the plate. =20
> =20
It is possible that "re-arrange set=E2=80=9D doesn=E2=80=99t work =
well on this plate  because it has more than 10 bad exposures (with bad
seeing). Is it possible to have a semi-manual re-arrange sets, for exam=
ple, input four exposures and only re-arrange set among these
selected 4 exposures?
> - 1 out-of-closed loop event during transition from cart 4->16
> =20
> - Dust: sum=3D7405.00
> =20
> =20
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