CCD Observing Log of Ritter Observatory
Page  1 of  1

Echelle settings UT Date:  2005 April 06
Observer:  KSB/MJS/DRL
LDS Settings
X-Disp Tilt 235.0 Wavelength H alpha Exposure:  20050406.*
Temp.:  28C RH (%):  44 Grating 6 Wavelength 5500 A Tilt 359.5
Echelle Tilt 20.55 Slit 275 Sky Conditions: cirrus, pt cldy --> clouds!
Det. Temp. -95C Slit ~200 microns Focus 6.45


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


76

6
0:04
0
"
L
Bias (5x)


127

7-11
0:12
4
"
E
Flat


3650

12
0:13
10
"
L
Flat (5x)


3327

13
0:25
300
"
E
Th-Ar


102
Oops.  Comp lamp left on during rotation.  Sorry...
14
0:37
180
"
L
Fe-Ar


207

15
1:05
1200
+2:51
E
zeta Tau
B4 IIIp
3.03
170
#16  Th-Ar   1:29  102
17
1:48
1200
+1:44
E
beta CMi
B8 Ve
2.90
154
#18  Th-Ar   2:12  103
19
2:38
1200
+0:16
E
epsilon Leo
G1 IIab
2.98
182
#20  Th-Ar   3:03  104      RV std (echelle)
21
3:23
300
-1:02
L
beta Vir
F9 V
3.61
325
#22  Fe-Ar    3:30  211      RV std (LDS)
23
3:48
3600
+1:04
E
eta Leo
A0 Ib
3.52
222
#24  Th-Ar   4:52  103
25
5:08
600
+2:24
E
alpha Leo
B7Vn
1.35
311
#26  Th-Ar   5:22  103     Telluric std (echelle)
27
5:37
3600
+0:27
E
kappa Dra
B6IIIpe
3.87
199
#28  Th-Ar   6:40  104     RH 70%
29
7:07
3600
-1:26
E
48 Lib
B5IIIpe
4.88
106
#30  Th-Ar   8:10  102
31
8:45
300
-0:26
L
zeta Oph
O9.5Vn
2.56
1024
#32  Fe-Ar   9:01   369
33
9:34
900
-3:42
E
alpha Cyg
A2Ia
1.25
241
#34  Th-Ar  9:52   102
35
10:19
1800
-2:45
L
WR140
WC 6
6.87
277
#36  Fe-Ar  10:48 195     In twilight
37
10:54
10

L
Flat (5x)


3121

38-42
10:56
4

E
Flat


4035

  43 11:00
0
   L 
Bias (5x)
     130  
44-48
11:08
0

E
Bias


78