Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: In-flight Calibration of the Dawn Framing Camera   We present a method for calibrating images acquired by the Dawn Framing
Camera (FC) that is based on the results of an in-flight calibration campaign
performed during the cruise from Earth to Vesta. We describe this campaign and
the data analysis in full. Both the primary camera FC2 and the backup camera
FC1 are radiometrically and geometrically calibrated through observations of
standard stars, star fields, and solar system objects. The calibration in each
spectral filter is accurate to within a few percent for point sources.
Geometric distortion, small by design, is characterized with high accuracy.
Dark current, monitored on a regular basis, is very low at flight operational
temperatures. Out-of-field stray light was characterized using the Sun as a
stray light source. In-field stray light is confirmed in narrow-band filter
images of Vesta. Its magnitude and distribution are scene-dependent, and
expected to contribute significantly to images of extended objects. Description
of a method for in-field stray light correction is deferred to a follow-up
paper, as is a discussion of the closely related topic of flat-fielding.

24
The categories of this paper are: dg-ga
28
The categories of this paper are: alg-geom
2
The categories of this paper are: math
3
The categories of this paper are: physics
26
The categories of this paper are: bayes-an
11
The categories of this paper are: hep-lat
29
The categories of this paper are: funct-an
31
The categories of this paper are: ao-sci
34
The categories of this paper are: chem-ph
12
The categories of this paper are: nucl-th
21
The categories of this paper are: adap-org
37
The categories of this paper are: supr-con
22
The categories of this paper are: chao-dyn
4
The categories of this paper are: cond-mat
10
The categories of this paper are: q-bio
1
The categories of this paper are: cs