CCD Observing Log of Ritter Observatory
Page  1 of  1

Echelle settings UT Date:  2006 May 05
Observer: GBT ANF JLL
LDS Settings
X-Disp Tilt: 235.0 λc: Hα Exposure:20060505.* Temp. (°C): 27
RH (%): 44
Grating: 6 λc: Hα Tilt: 3o
Echelle Tilt: 21.95 Slit: 275 Sky Conditions: Clear with cirrus
Slit: 255 Det. Temp.: -95oC Focus: 5.70


Exp #
Start Time
(UT)
Dur
(s)
HA
Start
E/L
Object
Sp. Type
V
Mag
ADU's
(/pix)
Comments
1-5
0:59
0

E
Bias


73
 
6-10
1:14
3

E
Flat


2993

11
1:40
300

E
Th-Ar


112

12
1:52
300
+3:24
E
betaGem
K0IIIb
1.1
165
#13 2:01 Th-Ar  113
14
2:22
2400
+1:31
E
eta Leo
A0Ib
3.5
107
#15 3:06 Th-Ar  115   counts low, adjusting focus
16
3:28
300
+2:37
E
alpha Leo
B7Vn
1.3
154
#17 3:36 Th-Ar  117   better counts
18
4:01
2700
+0:45
E
kappa Dra
B6IIIpe
3.9
149
#19 4:50 Th-Ar  115   through cirrus
20-24
4:59
0

E
Bias

78

25-29
5:14
3

E
Flat


3980