Date: Mon, 24 Jan 2000 02:03:37 -0700 (MST)
From: Ellyne Kinney
Subject: 2.5m obslog 000123 (MJD 51567)
                        Saturday, January 23, 2000
                    Apache Point Observatory SDSS 2.5m
                             Observing Log
Observing Team:	Ellyne Kinney (APO)
		Scot Kleinman (APO)
		Steve Kent (FNAL)
		Russell Owen (UW)
		Larry Carey (UW)
		Jim Gunn (PU)
		Connie Rockosi (UC)  - via phone
Weather: Calm winds, light cirrus.
Russell, Larry and Jim were working on the M2 support system when we
started, so we decide to test the Imager.  Jim helped us get the Imager
turned on and the TEC coolers going.  We had trouble staying connected to
the Imager at first until we realized that the pump for the TECs was not
on.  We may also have had trouble with the micros dying, but we are not
100% sure.
During start up we had trouble with the Watcher not connecting to the
server.  We tried stopping and restarting the servers several times.  We
did manage to get Watcher to connect to the server once early in the
night, but we lost the connection after about an hour and could not get
the connection back. (PR# 688)  We also noted that the murmur server was
reporting UNKNOWN values for disk space usage. (PR# 693)  This was tracked
down by Connie as being caused by the IOP DA server not broadcasting
messages.  We also note that the IOP im and IOP sop servers could not
connect to the IOP DA server.  Connie was able to get the IOP DA server
going with the startServer command in IOP, but when we tried it we got an
error message about 'failed to connect to im'
While stopping and restarting the IOP servers we noted that the commands
'start_servers -K' and 'start_servers -k' were not killing the existing
servers.  We killed the servers by typing 'exit' in the server windows.
(PR# 690)
We had trouble restarting the teamster due to a file that couldn't be
deleted in /tmp (.teamster.imager)  we deleted them from the superuser
account and were then able to restart the teamster. (PR# 689)
We needed to reboot the crates once during the night when the camera shut
itself down unexpectedly during a bias run (the shutdown was caused by the
pump in the TEC not being on).  We tried to reboot the crates using the
'initNight -crateReboot' command.  We rebooted the crates from the reset
button on the crates. (PR# 692)
We tried running endNight and this failed in shiptape due to a bad
reference to perl in tapeShip.pl. (PR# 694)
We did manage to talk to the camera both by logging directly into the
port and through iop.  We took one set of biases, and confirmed that the
watchdog will shut the camera down if there is not coolant flowing.
Russell and Larry finished their work on the M2 support at around 11pm.
We took the imager off the telescope at the end of the night and it is now
in the doghouse.  We ran into the following problems while trying to take
the imager off.  1) One of the Flat Field sensor was broken and Russell
and Larry tried to tape it shut, unfortunately the tape was not strong
enough to fully depress the switch.  We thought there was an override
switch on the interlock splitter chassis for the Flat Field sensor, but
could not find it.  We ended up overriding the Alt_UP_perm and Alt_DN_perm
in order to move the telescope.  This made us really nervous, but it was
not obvious what a better solution would be. (PR# 697 and 695)
2) We had to override MCP monitor in order to move in Alt (we are not sure
why)  When the monitor is off the brake status does not get correctly
reported to the MCP Menu. (PR# 695) 3) When we tried to move the
counterweights in the MCP Menu the counterweights would move a fraction of
the way and the stop.  We could move the weight using the panel
downstairs.  If we kept issuing the same counterweight motion in the MCP
we could finally get the weight to the commanded position.  The first
command all 4 weights move part way, the second command the 1st weight
moved all the way down and the other three only moved a little bit, the
third time the 3rd weight move all the way down and the last two moved a
bit and the final time both the 2nd and 4th counterweights moved all the
way down. (PR# 696) 4) The lights for the camera protection bolts in the
latch box are not lighting up properly.  The 'out' lights are wired
backwards and the 'in' light are wired correctly, but not being engaged by
the bolts (PR# 698) 5) The sensor for the 15-degree stop is loose and if
it is bumped the proper status for retracted of extended is not read.
(PR# 699)
Ellyne and Scot