There is a problem w/ your write-up. Check that you have valied entries for \$CAID and \$Campn in your analysis.php file. If that checks out, then Contact Stansberry"; return ; } // get first matching task $row = mysql_fetch_array($result); $title = $row["title"]; $princ = $row["principal"]; $deputy= $row["deputy"]; $campn0 = $row["campn0"]; $aorkeys = $row["aorkeys"]; // get real name of principal, deputies $princ = ioc_get_person($princ); $princ = $princ[0]; $deps = explode(",",$deputy); foreach ($deps as $depty) { $depty = trim($depty); $depty = ioc_get_person($depty); $depty = $depty[0]; $depty = explode(",",$depty); $depty = $depty[0]; // last names only $deplist[] = $depty; } $deplist = implode(", ", $deplist); $caid = sprintf("%03d",$caid); $file = "mips-".$caid.$campn.".analysis.php"; // if more matches, append the AORKEYS from those $numrows = mysql_num_rows($result); if ($numrows > 1) { $aorkeys = " " . $numrows . " Task Executions:  ". $aorkeys; for ($i=0;$i < mysql_num_rows($result); $i++) { $row = mysql_fetch_array($result); $morekeys = $row["aorkeys"]; $aorkeys = $aorkeys .';  '.$morekeys; } } // END PHP. ?> <? echo "MIPS-$caid, Campaign $campn IOC/SV Analysis"; ?>

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Task Outcome Summary

Abstract

This task determines the position and orientation of the SED slit relative to the PCRS. The goal of this task is to estimate the location of the SED prime frame with repsect to the telescope boresight. However, we do not observe at the prime frame, we use the CSMM with a chop amplitude of at least 1 arc minute peak to peak or +/- 0.5 arc minutes from the central mirror position that defines the "on" beam.
The location of the MIPS instrument frames are found in the frame tables and are given as brown angles. In order to estimate the instrument pointing frame (IPF), a combinations of spacecraft moves and mirror motions places the star on several locations on the array. In addition, these observations are "sandwiched" between observations of stars with the two PCRS. The MIPS team calibrates data and centroids the star on the slit. These centroided values are passed to the IPF team who uses observations of stars with the PCRS to provide the final calibration and estimate brown angles need to locate the instrument frame.

Determining the location of the y centeroid - peak flux - was easier than in campaign I but it was still tricky. In order to locate the center of the better we need smaller steps across the slit.

The results from the IPF team recommended the following changes to the prime frame brown angles : delta_theta_Y (-0.044625 arc minutes), delta_theta_Z (0.1537 arc minutes), delta_angle (0.000005 degrees). The IPF team gave an accuracy of the locating the prime frame center as 26.4392 arc seconds. The requirement was 1.6069 arc seconds. This is the accuracy of the prime frame and we do not observe at the prime frame. Any error in the knowledge of the CSMM gain will introduce additional error into the position of the "on" beam. At the moment, this additional error may be of order 10 percent for 3 arc seconds out of 30 arc seconds. Because the centroids only came from one side of the array, the IPF team had a problem determining improved brown angles. The comments on this run are given below: The comments from this report are as follows:

The brown angles from this run are .



Because of the difference in the brown angles when plate scales where use with the IPF filter and plate scales where not used, no frame table upate was performed with these results.

For a complete summary of frame table updates see : Frame Table Updates: Meta task 2080


Analysis

The data was calibrated by J Morrison using mips_sloper and mips_caler and calibration files provided for this campaign. The Paul Smith provided Jane Morrison a list of centroided x values and associated fluxes that those locations. Jane then determine the centroided y. Jocelyn Keene did an independent centroiding by looking at the images of the star on the slit. Jocelyn's and Jane's centroids were consistent.

Results

The results of the IPF team are in report ID504121.pdf The comments from this report are as follows:

Conclusions

The star was better centered on the slit than in campaign I. However the one-side nature of the centroid pattern prevent the IPF filter from producing high quality results. Therefore, we want to repeat this task with one that will give us 3 columns of centroids.

Output and Deliverable Products

CA and CS files were passed to the IPF team.

Actions Following Analysis

The one-sided nature of the centroid pattern prevented these results from being used for a FTU. THis task will be redone in a later campaign (4th Mips Camp).