OSIRIS Calibration Scan Analysis

Background

The OSIRIS Data Reduction Pipeline (DRP) converts raw 2-d images into 3-d datacubes via rectification matrices (recmats). Recmats are created by combining 30 (broadband) or 62 (narrowband) calibration scans that illuminate a single column of lenslets.

Occasionally, a set of scans is "bad" due to uneven illumination or a misaligned slitmask stage. We analyze these raw scans and show the results below.

Good scans have a constant value or vary continuously across the illuminated lenslets.

Click on a link for your filter and scale combination to see recent scans.


Contents

Links

Rectification Matrices
FITS files used with the DRP
Recmat Analysis
Measurement of well-centered spectral extraction


OSIRIS Calibration Scans

CALSCANS - Scan Analysis

Filter20 mas35 mas50 mas100 mas
ZbbZbb_020 Zbb_035 Zbb_050 Zbb_100
JbbJbb_020 Jbb_035 Jbb_050 Jbb_100
HbbHbb_020 Hbb_035 Hbb_050 Hbb_100
KbbKbb_020 Kbb_035 Kbb_050 Kbb_100
KcbKcb_020 Kcb_035 Kcb_050 Kcb_100
Zn2No recmat No recmat No recmat No recmat
Zn3No recmat No recmat No recmat No recmat
Zn4Zn4_020 Zn4_035 Zn4_050 Zn4_100
Zn5No recmat No recmat No recmat No recmat
Jn1Jn1_020 Jn1_035 Jn1_050 Jn1_100
Jn2Jn2_020 Jn2_035 Jn2_050 Jn2_100
Jn3Jn3_020 Jn3_035 Jn3_050 Jn3_100
Jn4Jn4_020 Jn4_035 Jn4_050 Jn4_100
Hn1Hn1_020 Hn1_035 Hn1_050 Hn1_100
Hn2Hn2_020 Hn2_035 Hn2_050 Hn2_100
Hn3Hn3_020 Hn3_035 Hn3_050 Hn3_100
Hn4Hn4_020 Hn4_035 Hn4_050 Hn4_100
Hn5Hn5_020 Hn5_035 Hn5_050 Hn5_100
Kn1Kn1_020 Kn1_035 Kn1_050 Kn1_100
Kn2Kn2_020 Kn2_035 Kn2_050 Kn2_100
Kn3Kn3_020 Kn3_035 Kn3_050 Kn3_100
Kn4Kn4_020 Kn4_035 Kn4_050 Kn4_100
Kn5Kn5_020 Kn5_035 Kn5_050 Kn5_100
Kc3Kc3_020 Kc3_035 Kc3_050 Kc3_100
Kc4Kc4_020 No recmat Kc4_050 Kc4_100
Kc5Kc5_020 Kc5_035 Kc5_050 Kc5_100
Last modified: 06/02/2013 07:06
Send questions or comments to:OSIRIS Support

The information on this page is the property of the W. M. Keck Observatory. The contents of this page or any part thereof shall not be copied or otherwise reproduced or transferred to other documents or used or disclosed to others for any purpose other than observing support at the W. M. Keck Observatory and the subsequent analysis and publication of scientific data obtained from observations conducted at the W. M. Keck Observatory. All rights reserved. © W. M. Keck Observatory.