CCD Observing Log of Ritter Observatory
Page  1 of  1

Echelle settings UT Date:  2005 April 09
Observer:  GBT, KSB/AM
LDS Settings
X-Disp Tilt 235.0 Wavelength H alpha Exposure:  20050409.*
Temp.:  70 RH (%):  57 Grating 6 Wavelength 5500 A Tilt 359.5
Echelle Tilt 20.55 Slit 275 Sky Conditions: clear, some cirrus
Det. Temp. -95C Slit ~200 microns Focus 6.45

+0:35

Exp #
Start Time
(UT)
Dur
(s)
HA
Start
E/L
Object
Sp. Type
V
Mag
ADU's
(/pix)
Comments
1-5
00:09
0

E
bias


75

6
00:12
0

L
bias (5x)


127

7-11
00:23
4

E
flat


3942

12
00:25
10

L
flat (5x)


3732

13
01:18
600
+01:08
E
beta Gem
K0 IIIb
1.14
784
RV standard; #14 Th-Ar 103
15
02:07
1200
+04:05
E
zeta Tau
B4 IIIp
3.03
146
#16 Th-Ar ~2:30
17
03:15
1200
+03:24
E
beta CMi
B8 Ve
2.9
202
#18 Th-Ar 3:40
19
04:01
1800
-00:16
E
gamma UMa
A0 V
2.44
249
#20 Th-Ar 4:34
21
04:44
180

L
Fe-Ar


203
NDM
22
04:53
180
+0:35 L
gamma UMa
A0V
2.4
1071
This star for practice with LDS #23 Fe-Ar 4:58
24
05:17
3000
+0:21
E
kappa Dra
B6IIIpe
3.9
166
#25 Th-Ar 6:11
26
06:24
1200
-1:59
E
delta Sco
B0IVe
1.6
322
#27 Th-Ar 6:47
28
06:55
1200
-1:29
E
delta Sco
B0IVe
1.6
315
#29 Th-Ar 7:18
30
07:50
180

L
Fe-Ar


189

31
07:58
1800
-4:46
L
WR 140
WC6
6.9
290
#32 Fe-Ar 8:29
33
08:43
300
-0:17
L
zeta Oph
O9.5Vn
2.6
403
#34 Fe-Ar 8:51
35
08:59
10

L
flat (5x)


2960

36-40
09:03
4

E
flat


3902

41
09:16
0

L
bias (5x)


129

42-46  09:18  0
 
bias     78