CCD Observing Log of Ritter Observatory
Page  1 of  1

Echelle settings UT Date:  17 Jul 2006
Observer: GBT
LDS Settings
X-Disp Tilt: 235.0 λc: Hα Exposure: 20060717.*
Temp. (°C): 37
RH (%): 72
Grating: 6 λc: Hα Tilt: 4o
Echelle Tilt: 21.95 Slit: 275 Sky Conditions: clear, muggy
Slit: 255 Det. Temp.: -86oC Focus: 5.70


Exp #
Start Time
(UT)
Dur
(s)
HA
Start
E/L
Object
Sp. Type
V
Mag
ADU's
(/pix)
Comments
01-05
2:19
0

E
Bias


80
 
06-10
2:32
1

E
Flat


2875

11
3:04
300

E
Th-Ar


123

12
3:22
900
+00:49
E
zeta Oph O9.5 Vn
2.6
238
#13 3:40 ThAr
14
4:07
1200
+00:28
E
betaOph
K2 III
2.8
387
tweaked focus; #15 4:31 Th-Ar
16
4:53
1200
+00:08
E
betaLyr
B7 Vpe
3.5
169
RH 85%; #17 5:18 Th-Ar
18
5:35
3600
-00:37
E
P Cyg
B1 Ia+
4.8
594
tweaked focus; #19 6:40 Th-Ar
20
6:59
300
+00:23
E
alpha Cyg
A2 Ia
1.3
443
#21 7:09 Th-Ar
22-26
7:16
0

E
Bias


83

27-31
7:29
1

E
Flat


2809