CCD Observing Log of Ritter Observatory
Page  1 of  1

Echelle settings UT Date: 19 Dec 2006
Observer: NDM, SJR
LDS Settings
X-Disp Tilt: 235.0 λc: Hα Exposure:
Temp. (°C): 15
RH (%): 65
Grating: 6 λc: Hα Tilt: 4o
Echelle Tilt: 21.95 Slit: 275 Sky Conditions:  mostly Clear, cirrus
Slit: 255 Temp.: -93.5oC Focus: 5.81


Exp #
Start Time
(UT)
Dur
(s)
HA
Start
E/L
Object
Sp. Type
V
Mag
ADU's
(/pix)
Comments
01-05
22:38
0
zenith
E
bias


78
 
06-10
22:55
5
zenith
E
Flat


4724

11
23:18
300

E
Th-Ar comp


107

12
23:32
300
+3:06
E
alpha Cyg
A2Ia
1.25
312
Th-Ar comp #13 23:42 clouded up, had to stop for a bit
14 1:56
300
+1:30
E
alpha Cas
K0IIIa
2.23
110
small hole, but still cloudy Th-Ar comp #15 2:13





 


closed up early due to heavy clouds