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  1. Data Management
  2. DM-37094

Check the MTMount Tracking Trajectory Data

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    • Type: Story
    • Status: Done
    • Resolution: Done
    • Fix Version/s: None
    • Component/s: ts_main_telescope
    • Labels:

      Description

      Check the MTMount tracking trajectory data. Russell did the following tests at 11/23:

      1. Track a ramp from az=-40.0, el=30.0 to az=-39.0, el=41.0 deg at speed az=0.05, el=0.025 deg/sec; this will take 440.00 seconds

      2. Track a ramp from az=-40.0, el=30.0 to az=-39.0, el=31.0 deg at speed az=0.05, el=0.025 deg/sec; this will take 40.00 seconds

      The timestamp is 1669244241.788 (the only timestamp I could find in the slack channel):

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          ttsai Te-Wei Tsai added a comment -

          Please help to review the following notebook for this effort (I have no plan to merge this feature branch to develop branch):

          https://github.com/lsst-ts/ts_notebooks/blob/feature/analysize/procedures/MT/rotator/trajectory_mtmount.ipynb

          I have the question after checking the data in EFD. I thought the tracking speeds should be 0.05 deg/sec and 0.025 deg/sec based on your slack message. But the data showed it should be 0.1 deg/sec.

          Do you have any idea what should be the speeds you issued at 11/23 night?

          Thanks!

          Show
          ttsai Te-Wei Tsai added a comment - Please help to review the following notebook for this effort (I have no plan to merge this feature branch to develop branch): https://github.com/lsst-ts/ts_notebooks/blob/feature/analysize/procedures/MT/rotator/trajectory_mtmount.ipynb I have the question after checking the data in EFD. I thought the tracking speeds should be 0.05 deg/sec and 0.025 deg/sec based on your slack message. But the data showed it should be 0.1 deg/sec. Do you have any idea what should be the speeds you issued at 11/23 night? Thanks!
          Hide
          rowen Russell Owen added a comment -

          The speeds should be as listed in the slack channel. The timestamp in a message at 7:57 was 1669244241.788 (and it may have taken me a few seconds or a minute to paste it) and the two ramps were at 8:04 and 8:12 so I would expect the ramps to start at about 1669244241.788 + 12 minutes and 1669244241.788 + 15 minutes. It might be worth checking for the MTMount entering tracking mode. Next time I can provide proper timestamps.

          Show
          rowen Russell Owen added a comment - The speeds should be as listed in the slack channel. The timestamp in a message at 7:57 was 1669244241.788 (and it may have taken me a few seconds or a minute to paste it) and the two ramps were at 8:04 and 8:12 so I would expect the ramps to start at about 1669244241.788 + 12 minutes and 1669244241.788 + 15 minutes. It might be worth checking for the MTMount entering tracking mode. Next time I can provide proper timestamps.
          Hide
          ttsai Te-Wei Tsai added a comment - - edited

          Analyzed the new data and sent the email to Ismael already.
          Test of Trajectory Generator on TMA.pdf

          Show
          ttsai Te-Wei Tsai added a comment - - edited Analyzed the new data and sent the email to Ismael already. Test of Trajectory Generator on TMA.pdf

            People

            Assignee:
            ttsai Te-Wei Tsai
            Reporter:
            ttsai Te-Wei Tsai
            Reviewers:
            Russell Owen
            Watchers:
            Russell Owen, Te-Wei Tsai
            Votes:
            0 Vote for this issue
            Watchers:
            2 Start watching this issue

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              Updated:
              Resolved:

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