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operations:pointing [2013/02/13 23:31] Jim Lovell [Obtaining a pointing model with the PCFS] |
operations:pointing [2016/06/23 00:04] Jim Lovell [Version 2016.151] |
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When you are satisfied with the pointing solution: | When you are satisfied with the pointing solution: | ||
<code> File -> Save </code> | <code> File -> Save </code> | ||
- | This will save two new files in ''/usr2/log''. The ''xtr'' | + | This will save two new files in ''/usr2/log''. The ''xtr'' file contains the data which can be re-loaded and reduced if necessary. The ''err'' file contains the new model: look for ''new_model'' in the file. |
+ | |||
+ | === Updating the pointing model === | ||
+ | To update the pointing model (which will go into ''/usr2/control/mdlpo.ctl'') use the ''update'' command. If the new model is called err2013.043, type | ||
+ | <code>update 2013.043</code> | ||
+ | Then check the new file to see if it's been updated. | ||
+ | |||
+ | To copy the model into the controller, use HMI | ||
==== Obtaining a pointing model with the Power Sensor ==== | ==== Obtaining a pointing model with the Power Sensor ==== | ||
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===== Hobart 12m model ===== | ===== Hobart 12m model ===== | ||
+ | |||
+ | ==== Version 2016.151 ==== | ||
+ | 2 June 2016 | ||
+ | |||
+ | Observations over 24he. Little change to rms before and after | ||
+ | |||
+ | <code> | ||
+ | Data: | ||
+ | xEl mean -0.0013 | ||
+ | xEl RMS 0.007 | ||
+ | El mean -0.015 | ||
+ | El RMS 0.008 | ||
+ | |||
+ | After solution: | ||
+ | xEl RMS 0.007 | ||
+ | El RMS 0.009 | ||
+ | </code> | ||
+ | |||
+ | Solutions applied err2016.151 | ||
+ | |||
+ | {{:operations:opsmac1.png?200|}} | ||
+ | |||
+ | |||
+ | |||
+ | |||
+ | ==== Version 4.2 ==== | ||
+ | |||
+ | Model updated from observations taken over a few days around 2014/205. Slight dependance on Elevation offset with Azimuth removed. Otherwise looks good. | ||
+ | |||
+ | ==== Version 4.1 ==== | ||
+ | |||
+ | Slight offset in elevation. Model updated from observations on 2013/323 | ||
+ | |||
+ | ==== Version 4.0 ==== | ||
+ | |||
+ | Taken using PCFS on 2013 day 043/044. Coefficients used during pointing: | ||
+ | |||
+ | <code> | ||
+ | * 0 0 0 0 0 0 0 | ||
+ | * 90.0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 | ||
+ | * -0.4263 0.0 0.0048 0.0363 -0.0004 | ||
+ | * -0.0026 0.1906 0.0250 0.0 0.0 | ||
+ | * 0.0 0.0 0.0 0.0 0.0 | ||
+ | * 0.0 0.0 0.0 0.0 0.0 | ||
+ | * 0.0 0.0 0.0 0.0 0.0 | ||
+ | * 0.0 0.0 -0.0014 | ||
+ | </code> | ||
+ | |||
+ | Newly derived coefficients: | ||
+ | <code> | ||
+ | 00002 2013 044 23 30 55 0 | ||
+ | 90.0000 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 | ||
+ | -0.4380196333 0.0000000000 0.0065650782 0.0334785432 -0.0023106572 | ||
+ | 0.0025938717 0.1538095325 0.0214055236 0.0000000000 0.0000000000 | ||
+ | 0.0000000000 0.0000000000 0.0000000000 0.0000000000 0.0000000000 | ||
+ | 0.0000000000 0.0000000000 0.0000000000 0.0000000000 0.0000000000 | ||
+ | 0.0000000000 0.0000000000 0.0025560106 0.0000000000 0.0000000000 | ||
+ | 0.0000000000 0.0000000000 0.0000000000 0.0000000000 0.0000000000 | ||
+ | </code> | ||
+ | |||
+ | In HMI these are translated to: | ||
+ | |||
+ | ^ Coeff ^ Old model ^ New model ^ | ||
+ | | P1 | -0.0363 | -0.0335 | | ||
+ | | P2 | -0.4263 | -0.4380 | | ||
+ | | P3 | 0.0048 | 0.0066 | | ||
+ | | P4 | -0.0026 | -0.0026 | | ||
+ | | P5 | -0.0004 | -0.0023 | | ||
+ | | P6 | not used || | ||
+ | | P7 | 0.1906 | 0.1538 | | ||
+ | | P8 | 0.0250 | 0.0214 | | ||
+ | | P9 | -0.0014 | 0.00255 | | ||
+ | |||
+ | Field system and HMI have been updated | ||
==== Version 3.4 ==== | ==== Version 3.4 ==== | ||
30 June 2011\\ | 30 June 2011\\ | ||
Line 66: | Line 147: | ||
P8 = 0.0000\\ | P8 = 0.0000\\ | ||
P9 = 0.0029\\ | P9 = 0.0029\\ | ||
- | |||
==== Version 3.3 ==== | ==== Version 3.3 ==== | ||
17 Feb 2011\\ | 17 Feb 2011\\ | ||
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===== Katherine 12m model ===== | ===== Katherine 12m model ===== | ||
+ | ==== Version 2016.151 ==== | ||
+ | |||
+ | Observations over 24h following recent maser maintenance. Little change to rms before and after | ||
+ | |||
+ | <code> | ||
+ | Data: | ||
+ | xEl mean 0.0027 | ||
+ | xEl RMS 0.007 | ||
+ | El mean -0.0118 | ||
+ | El RMS 0.0118 | ||
+ | |||
+ | After solution: | ||
+ | xEl RMS 0.0126 | ||
+ | El RMS 0.013 | ||
+ | </code> | ||
+ | |||
+ | Solutions applied err2016.151 | ||
+ | |||
+ | {{:operations:ke_pointing_2016_151.png?200|}} | ||
+ | |||
==== Version 1.0 ==== | ==== Version 1.0 ==== | ||
Line 246: | Line 346: | ||
===== Yarragadee 12m model ===== | ===== Yarragadee 12m model ===== | ||
+ | |||
+ | ==== Version 2016.151 ==== | ||
+ | |||
+ | Observations over 24h following recent maser maintenance. Little change to rms before and after | ||
+ | |||
+ | <code> | ||
+ | Data: | ||
+ | xEl mean -0.0006 | ||
+ | xEl RMS 0.011 | ||
+ | El mean 0.015 | ||
+ | El RMS 0.008 | ||
+ | |||
+ | After solution: | ||
+ | xEl RMS 0.012 | ||
+ | El RMS 0.010 | ||
+ | </code> | ||
+ | |||
+ | Solutions applied err2016.151 | ||
+ | |||
+ | {{:operations:yg_pointing_2016_151.png?200|}} | ||
+ | |||
+ | This solution was put into HMI on 22 June 2016, ~23:45 UT (day 174). Parameters are: | ||
+ | |||
+ | <code> | ||
+ | G1 -0.0105 | ||
+ | G2 -0.0070 | ||
+ | G3 0.0180 | ||
+ | G4 0.0094 | ||
+ | G5 -0.0024 | ||
+ | G7 0.2059 | ||
+ | G8 0.0158 | ||
+ | G9 0.0007 | ||
+ | </code> | ||
+ | |||
+ | Note that these were initially put in to HMI on June 20 but the sign for G4 was wrong. Not sure if that had a significant impact or not. | ||
+ | |||
+ | Also updated HMI (on day 175, 00 UT) with revised station coordinates. Only sig change was to elevation which was 50m too low. | ||
+ | |||
+ | <code> | ||
+ | Lat, Long, Elevation: | ||
+ | Before: -29.0465, 115.3467, 200.0 | ||
+ | After: -29.0469, 115.3465, 250.48 | ||
+ | </code> | ||
+ | |||
+ | |||
+ | |||
==== Version 1.5 ==== | ==== Version 1.5 ==== | ||