From: Fred Mrozek
Subject: Re: [sloan-25mlog 5237] Re: 2.5m obslog 20201105 (SJD 59159)
Date: Fri, 6 Nov 2020 10:11:04 -0700
--Apple-Mail=_6E1E5E88-3A38-49C0-9B2A-7855DFBC6001
Content-Transfer-Encoding: quoted-printable
Content-Type: text/plain;
	charset=utf-8
They are at 446 +/-1 right now, exactly as we left them.
I=E2=80=99ve been recording both the input value, and the higher value =
it relaxes too after you turn off power.
> On Nov 6, 2020, at 9:58 AM, rwagner@apo.nmsu.edu wrote:
>=20
>=20
> - According to the day log, the counterweights should have been at 440 =
for
> carts, but they were at 450 (which is for the FSC). We didn't notice =
any impact
> this might have had on observing.
>=20
> If this value was just going down and looking at the value without =
selecting each individual weight then yes, you won=E2=80=99t see 440 but =
more like 446 or so. That=E2=80=99s just the way that counterweight =
system works. We set it to 440 with each weight selected, once we toggle =
to =E2=80=98off=E2=80=99 on the chassis it goes up 5-6 counts. I don=E2=80=
=99t think there=E2=80=99s a way around it but whatever value you see by =
looking at it without moving the dial is a bit higher than what we =
report as the value set.
> ____________________________________________________________
> Logs of Nightly APO Activities >
> =
https://trac.sdss.org/tracmailman/browser/private/sloan-25mlog/index.html =
--Apple-Mail=_6E1E5E88-3A38-49C0-9B2A-7855DFBC6001
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html;
	charset=utf-8
They =
are at 446 +/-1 right now, exactly as we left them.I=E2=80=99ve been recording both the =
input value, and the higher value it relaxes too after you turn off =
power.On Nov 6, 2020, at 9:58 AM, rwagner@apo.nmsu.edu =
wrote:- According to the day log, the =
counterweights should have been at 440 forcarts, but they =
were at 450 (which is for the FSC). We didn't notice any impactthis might have had on observing.If this value was just =
going down and looking at the value without selecting each individual =
weight then yes, you won=E2=80=99t see 440 but more like 446 or so. =
That=E2=80=99s just the way that counterweight system works. We set it =
to 440 with each weight selected, once we toggle to =E2=80=98off=E2=80=99 =
on the chassis it goes up 5-6 counts. I don=E2=80=99t think there=E2=80=99=
s a way around it but whatever value you see by looking at it without =
moving the dial is a bit higher than what we report as the value =
set.______________________=
______________________________________Logs of Nightly APO =
Activities <sloan-25mlog@sdss.org>https://trac.sdss.org/tracmailman/browser/private/sloan-25mlog/=
index.html=
--Apple-Mail=_6E1E5E88-3A38-49C0-9B2A-7855DFBC6001--