First try closing and reopening the Slit View Camera package (SCP) and/or Data Taking Package (DTP) and taking a single (SCP) and Test Exposure (DTP). You might have to kill the packages in the ICS Hub under Check Processes before reopening them if one or both are frozen.
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If one or more of the detectors still do not read out or the SCP or DTP freezes, the next step is to try running the detector reset script.
In the event want to only reset one or two of the detectors. You can specify which detectors are reset by modifying the script as follows:
Open ~/igrins_admin/igm_rcv.py in a text editor
On line 33 it should say,
ers = [’S’,’H’,’K’]
The list ers tells the script which detectors to reset. Comment out line 33 and below set ers equal to what detectors you want to reset.
For example if you only want to reset the slit-view camera detector, you would have the following:
#ers = [’S’,’H’,’K’]ers = [’S’,’H’,’K’]
If any of the detectors are missing, add their associated letter and rerun.
try running the detector reset script as following:
Close the SCP and DTP if you have not already done so. If one or both are frozen, use the ICS Hub → Kill Processes to close them.
Open a terminal
cd ~/igrins_admin
source run_det_restart.sh
Put in the igrins password used to log into the Instrument Control Computer.
Wait a minute while it runs.
If you see nothing but a bunch of zeros scrolling by for a few minutes, the script did not work and you will need to press control c to kill the script and then proceed to the instructions for power cycling the detector controllers below.
If the script works, when it is finished reopen the SCP and DTP.
Take a single + test exposures to confirm all three detectors read out.
Note: Resetting the H-band detector can leave a strong electronic signal on the detector that looks like a bright column. It will slowly fades away over time. Take a 30 second test exposure to see if it is there. You might want to wait 10-20 minutes before continuing observations to allow time for most of the signal to fade away.
If this running the detector restart script does not resolve the issue, you will need to power cycle the detector readout electronics controllers. Do the following:
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