P73-803: Backup targets for Service nights

During the fixed Service nights, if the main targets, for which OBs are submitted, can not be done due to wind direction problems or other sky conditions requirements not being fulfilled, then see below for a list of backup targets and instructions for observations.

All targets are to be observed with exptime 60 seconds, except target PSR_J0212+5321 for which 15 seconds is ok.

The images are taken in filters g (#120), r (#110) ,i (#111) and this sequence should be repeated for 2 hours.

4FGL_J2054.2+6904   20:53:58.99  +69:05:19.71
PSR_J2055+3829      20:55:10.306550 +38:29:30.90571
PSR_J2055+1545      20:55:47.83  +15:45:21.22
4FGL_J2056.4+3142   20:56:34.61  +31:42:37.0
PSR_J2129-0429      21:29:45.039 -04:29:06.81
PSR_J2215+5135      22:15:32.6884 51:35:36.340
3FGL_J2221.6+6507   22:22:32.80  +65:00:21.0
4FGL_J2249.4+6229   22:48:28.614 +62:22:11.40
PSR_J2339-0533      23:39:38.74  -05:33:05.32
PSR_J0212+5321      02:12:10.47274 53:21:38.8110
4FGL_J0327.3+2355   03:27:43.03  +23:51:43.91
4FGL_J0336.0+7502   03:36:10.18  +75:03:17.27

How to observe manually

• Make sure ALFOSC is selected or: tcs.setup-tel-alfosc
• Add target to TCS catalogue with the tcs.append-target command.
• Go to target with the tcs.guide-object command.

• Make sure the ADC is out and the FAPOL retarder is out:
  • alfosc.carriage out
  • tcs.adc-arm-out

• To change the filters and take exposures, you can use the script called gri-loop in this directory.
  NB! It does not point to target, so make sure you have done the steps above. The command:

  gri-loop EXPT TARGETNAME

  starts looping over the gri filters, taking one exposure in each filter with exposure time EXPT.

  The script is interrupted with Ctrl-C.

alfosc.resetxy
alfosc.readspeed 400
alfosc.bin 2
alfosc.object TARGETNAME

Loops until interrupted over:
  alfosc.wheels -f 120
  alfosc.focus-offset
  alfosc.expose EXPT
  alfosc.wheels -f 110
  alfosc.focus-offset
  alfosc.expose EXPT
  alfosc.wheels -f 111
  alfosc.focus-offset
  alfosc.expose EXPT