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Performance analysis of STX-16803 4k ccd2

충북대학교 자연대 학술대회 발표 자료
by

seonghyeun song

on 24 September 2013

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Transcript of Performance analysis of STX-16803 4k ccd2

Performance
analysis
of
STX
-
16803
4
k
c
c
d
SeongHyeun Song¹²
BoMi Kim¹
TaeWoo Kim¹²

Y.N.Kim¹²
What
is
ccd

??
1.
Dept. of Astronomy

&
Space Science,


Chungbuk
National University,
2.
Chungbuk
National University

Observatory
STX
-
16803

4
k

C
C
D
1
.
Bias
2
.
Dark
3
.
Flat
1 M

reflecting

telescope
60 cm

wide-field

telescope
The flat is the process by which the
correction
between the
quantum efficiency
of the CCD
pixels and the pixel
. This unique quantum efficiency of the CCD pixels difference, as well as to compensate the difference between pixels caused by dirt or stains on the mirror.
R
e
s
u
l
t

Overall
4k CCD can have
60,000 ADU

changing the scale
of the graph.
Bias
45 °
seems to
appear
linearity
Show that value
residuals
of linear line
Shows the
ideal linearity
Screen
standard

light
source
reflecte
H
a
v
e

a

Q
u
e
s
t
i
o
n
?
Kinds of
things

that

need
to

be calibrated
do you see the
straight line
the distribution of bias values ??
Low temperature
, the
smaller the exposure
lower the value of the dark noise.
increase
exponentially
residuals
decrease

redraw
graph
except

the strange values

A
charge-coupled device
-
usually abbreviated with CCD
.

CCD
isn't perfect
because it is an

electronic product

electrical signals enter
As heat
the electric charge
occurs
Not
same

response
Dark
Flat
Median
1050.5±0.9
Focus
scale
Crab Nebula
corrected
image
Color image
Bias
Dark
Flat

STABLE
Professor Y.K. Kim¹²
Focus
scale
Full transcript