Inter
) ; Figu
DETERMINATION OF CENTROID OF CCD STAR IMAGES. i
line
ols ; . a : à abo
Table 4: Precision of centroid determinations from moment analysis method ec
image ne o aite ; jme : Unit mean standard errors
image name D ate FE Nas ae variance (in xix) both
objects Set ag. 9, and
0.21
CCDF100 | 11.11.96 2 8 1.03 0.18 0.13 are |
CCDF201 10.02.97 1 12 1.08 0.32 0.29 is pc
Ccpr242 | 23.02.97 2 12 1.04 0.12 9.10 This
CCDF302 | 23.02.97 2 1^ 1.04 0.16 9535 for
CCDF303 | 23.02.97 2 to 1.02 0.19 0.10 equa
CcpFI116* | 23.02.97 1.6 8 1.05 0.44 0.43 the
CCDF224* | 23.02.97 2.4 8 2.00 0.55 0.81 shov
CCDF225 | 23.02.97 ais 8 1.02 0.35 0.34 grap
CCDF228 | 23.02.97 2.8 8 1.04 0.37 0.33 facic
the [
i | used
Table 5: Precision of centroid determinations from moment analysis and PSF fitting method is im
Time of Ex
D observation XD. Moment analysis (in Pixels) Psf fitting (in Pixels)
Serial 5
N Image name | (UTC) ume S,
0. : c ~ 2 2
(secs) e. c, o, oo m o, The
* 46 an a
1 CCDELO! 21:45:59 1 0.99 0.47 0.46 1:03 0.32 0.39 ;
20* 21:47: 2 ;
2 CCD120 21:47:59 1.2 1.23 0..56 0..53 1.09 0.40 0.37 E
^: 5 . . €
3 CCDI30 21:57:59 1.5 1.03 0.27 0.29 1.10 0.09 0.15 ach
4 CCDI8O* 21:59:54 1.8 1.04 0.37 0.40 1.04 0.34 0.24 estin
5 CCDISI 22-01:19 1:8 1-0] 0.24 0.24 1.01 0.21 0.18 also
6 CCD200* |22:02:32 2 1.27 0.61 0.60 1.04 0.43 0.42 secti
7 CCD201* 22:03:59 2 1.48 0.45 0.43 jog] 0.17 1.0.21 Imag
$ arcse
CCD220 22:09:31 2.2 0.98 0.21 0.11 1.05 0.25 0.19 usins
9 CCD221 22:10:58 2.2 0.99 0.23 0:23 - - - and
10 CED250 22:13:34 2.5 1.40 0.19 0.23 1.02 0.22 0.14 estin
1 CCD251 22:12:14 2.5 1.05 0.14 0.14 1.05 0.14 0.11 serio
12.1» LCD250 224 3:11 2.8 1.05 0.17 0.10 : ] : durir
PSF
13 CED2BI 22:16:19 2.8 1.04 0.23 0.15 1.01 0.20 0.16 Refe
Ka CCD301 22:48:33 3 1.02 0.18 0.13 1.04 0.36 0.29
15 CCD253 22:19:58 2.3 1.09 0.23 0.19 1.03 0.26 0.18 1,
16 CCD103 22:24:06 l 0.99 0.23 0.23 1.03 0.16 0.10
17 CCDIS3 22:28:17 1.5 1.03 0.18 0.22 0.99 0.22 0.18
2.
3.
4.
S,
616
