Engineering Test Results:
Calibration of the Effective Wavelength for the LGS-AO Tip-Tilt Sensor, STRAP
R. Campbell, P. Stomski
14 Sep 2004
file |
star |
spec type |
Vmag |
B-V |
Zentith angle |
Centroid |
angle error |
Shift �amplitude arcsec |
|
xCoord |
yCoord |
||||||||
5 |
SAO 74309 |
A3 |
9.24 |
0.34 |
6.05 |
602.3 |
295.8 |
0.0 |
0.000 |
8 |
SAO 74149 |
G0 |
9.57 |
0.85 |
10.08 |
601.2 |
293.3 |
0.0 |
-0.025 |
10 |
SAO 73936 |
M0 |
8.64 |
1.48 |
14.73 |
599.2 |
289.2 |
0.0 |
-0.066 |
12 |
SAO 73419 |
A2 |
10.32 |
0.05 |
26.65 |
603.2 |
276.1 |
0.0 |
-0.197 |
13 |
SAO 73271 |
G5 |
8.96 |
0.58 |
29.68 |
602.9 |
276.8 |
0.0 |
-0.190 |
15 |
SAO 73385 |
K2 |
8.25 |
1.51 |
29.19 |
601.0 |
280.0 |
0.0 |
-0.158 |
17 |
SAO 93956 |
A2 |
8.70 |
0.10 |
40.75 |
603.8 |
266.9 |
0.0 |
-0.289 |
19 |
SAO 94023 |
F8 |
8.94 |
0.53 |
41.15 |
604.2 |
264.9 |
0.0 |
-0.309 |
20 |
SAO 94080 |
K5 |
8.27 |
1.73 |
40.83 |
602.4 |
272.4 |
0.4 |
-0.234 |
22 |
SAO 94852 |
A0 |
9.29 |
-0.01 |
55.01 |
591.8 |
234.8 |
-13.8 |
-0.624 |
27 |
SAO 94959 |
K7 |
8.85 |
1.87 |
53.68 |
580.1 |
259.0 |
-11.9 |
-0.429 |
29 |
SAO 95065 |
G0 |
9.52 |
0.41 |
53.20 |
594.3 |
240.9 |
-12.4 |
-0.555 |
Table 1
A summary of STRAP effective wavelength test observations. Note that a rotator fault resulted in a rotation angle error in the last 4 images. Measured centroids and the relative shift from the effects of DAR are included in the table.
References
1. Filippenko, A. V., PASP vol. 94, Aug. 1982, p. 715-721
2. P. Stomski, D. Le Mignant, P. Wizinowich, R. Campbell, R. Goodrich:� Compensating for Differential Atmospheric Refraction in the Keck II AO system.� SPIE Proc. Volume 4839, 943-953 (2003).
3. P. Stomski, R. Campbell . STRAP DAR Test procedure