Subject: Re: [sloan-25mlog 5402] 2.5m obslog 20210220 (SJD 59266)
From: Katie
Date: Sun, 21 Feb 2021 15:57:34 -0700
There was not a tcc axis stop before taking the semaphore.
The command =E2=80=9Ctcc track 121,30 mount=E2=80=9D did not have a =
rotator command in it, so the rotator did not move. There was a second =
MCP command to move the rotator back to zero while the altitude was =
moving to 5.
Given the MCP overshoot, we were cautious about moving the telescope =
back to 5 to move the enclosure to reseat the pin.
> On Feb 21, 2021, at 8:38 AM, Kaike Pan  wrote:
>=20
>=20
>> - We had an MCP GoTo5 overshoot at 4:45Z while closing due to =
weather.
>=20
>> # In the process of closing, we had another slew overshoot while =
going to 5.
>> We ran go to gang change from field, then to stow using `tcc track =
121, 30
>> mount`, then aborted the rotator slew once alt was at 30deg, then we =
took the
>> semaphore as mcpop, then we slewed alt to 5, and in the process, =
started a=20
>> rotator slew to 0 from wherever it was at when we aborted the stow =
slew. This
>> unusual procedure is a common way of closing quickly and not waiting =
for the
>> rotator to catch up.
>>=20
>=20
> Dylan and Katie:
>=20
> After you aborted the slew to the stew, did you issue =E2=80=9Ctcc =
axis stop=E2=80=9D before took the semaphore?
>=20
> Sound like that the rotator also moves while you only move the =
altitude from 30 to 5 via TPMGUI,
> correct?
>=20
>>=20
>> - The south enclosure pin didn't go in all the way when we were =
closing. It's
>> through the first hole but not the second.
>>=20
>=20
> It=E2=80=99s possible that the enclosure is a tiny little short to its =
closing position yet. Did you move back up
> the enclosure a little, and move to the close position again?
>=20
> Fred and Ryan: If one of you are on site, can you check if the south =
pin is fully in now?
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