The plan for 20160316
NOTE: Please don't forget to start recording on Control Desk
Priorities for test are in the order listed in the plan below.
Check out
Remember that GC1 is still not working so do not home probes. Any probe you move will be your active probe for the night unless you reset the move history (see Guide Probe procedures)
The new breaker has been installed in the calibration unit so please try to use the procedure to take a full set of lrs2 calibration data at the start of the night following the procedures found in LRS2 operating procedures. If you take any lrs2 data during the night please take a 2nd set at the end of the night. Be sure to look at most of the lamp frames to see what works and what does not.
Twilight
Night time activity
- No short cuts night.
- Take time to document and record fully and in best detail any problems
- Document any problems with any standard procedure:
1) Use Go Next (not manual setups)
2) Use tip-tilt on every target (even if that might slow down TCS)
3) Use kill -6 to stop any process you need to stop
4) Use focus curve on every field
- We need to determine a best position for the gstar IHMP.Position file so that the guide star lands more in the center of the probe. Steve has updated the lrs2g code with the new positions of the lrs2b and lrs2r markers. Thus we should try running this and see if the performance is improved. We may also be able to improve performance slightly by using a different IHMP.Position since the center of the IHMP may not be exactly the same as the center of the guide probe annulus.
- clear out the temporary directory
- install the current IHMP position in the file IHMP.Position
- run the lrs2g code for a target star on lrs2b with a long trajectory
- setup on the target star and see if you can see the guide star in gc2.
- ask the TO to center the star in the probe using a probe offset
- note the position of the gc2 probe
- rerun the lrs2g code with slightly different values in the IHMP.Position to see if you can match the actual probe position found in the step above. Note this fake-out IHMP.Position value pair in the log.
- Trying this fake-out IHMP.Position value pair on the other lrs2 position, ie. lrs2r
- Trying this fake-out IHMP.Position value pair on a very different gc2 position (at the other end of the range of motion).
- The goal for tonight should be to learn to offset from LRS2B to LRS2R. This can be done simply with the ACQ and guide probe 2 and the positions given in Current best position for markers
- Select target and send to TCS
- Move Target to the lrs2b position on ACAM
- guide on the ACAM
- get the guide probe 2 set and well centered
- start guiding on GC2 and stop guiding on ACAM
- offset to lrs2r position example syscmd -T 'offset_trajectory(dx_ang=-100, dy_ang=0, adjust_probes="true")'
- allow the GC2 guider to catch-up and drag the star to the fiducial.
- look at the final position on the ACAM and determine what values need to change in the dx_ang and dy_ang
- repeat until you can reliably make this offset at any Az.
- Note the offset from lrs2r to lrs2b might not be the exact opposite sign as the move lrs2g to lrs2r
- If you are able to complete this exercise and it is clear please observe several different spetroscopic flux standards near the center of track in both lrs2b and lrs2r. If you do take a standard please take a full set of calibration data at the end of the night as well.
