First half of the night: several problems with the DECALS system which were not unexpected since it has been a while since the last time we used it. It took about 3 hours to make it work.
- Cooling system: During the afternoon, David Rojas and Juan Gonzalez worked on the cooling liquid of the Xe lamp which was blocked due to sarro (is scale the right word in english? maybe "mineral deposits"). They were able to unblocked it and the system was left working fine. However, a deeper maintenance is needed
- At the start of the night the power switch of the DECAL component was not working. David fixed it by reseting the switch.
- After several unsuccessful attempts to calibrate the spectrograph we realized the HgAr lamp had no power. We found a temporary solution by connecting the lamp directly to a power outlet and run the calibration. Then it was disconnected.
| Total Times | Time Observed | Time Engineering | Time lost technical | Time lost weather | Time lost other | Total Program Time |
|---|---|---|---|---|---|---|
| 2024-06-24 | 0.0 | 5.75 | 0.0 | 0.0 | 0.0 | 5.75 |
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First half: Huge thanks to David Rojas, Juan Gonzalez and Manuel Hernandez for working on finding solutions to make the DECAL scans tonight. Scan with M411 completed succesufully. Scan ended at 12:15am. Sky was mostly clear at that hour but not photometric so I decided to hand over to DELVE and not attempting to take the spectrophotometric standard.