[Last Change: 21 Feb 2012 (rev 8)]

Focal Length, Plate Scale, and Detector Positions


The actual HRMA on-orbit focal length is 10070 +/- 3mm (90% interval including systematic uncertainties). The official determination and announcement are posted below.

The GEOM file produces acceptable sky coordinates for all detectors; the residual errors are well within 1" in the areas normally used for imaging observations.


Title Author Date
Plate Scale and Relative Chip Postions Maxim Markevitch 2001-12-03
HRMA Focal Length Maxim Markevitch 2001-12-01
| HRMA On-orbit Focal Length | Ping Zhao | 2000-08-09 |
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