CCD Observing Log of Ritter Observatory
Page  1 of  1

Echelle settings UT Date:  2005 Feb 27
Observer:  AM
LDS Settings
X-Disp Tilt 235.0 Wavelength H alpha Exposure:  20050227.*
Temp.:  +3 C
RH (%):  70 Grating 6 Wavelength 5500 A Tilt 359
Echelle Tilt 20.55 Slit 275 Sky Conditions:  Clear 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
01-05
4:39
0

E
Bias


74

06-10
4:53
4

E
Flat


4286

11
5:07
300

E
Th-Ar


87

12
5:25
2400
+2:52
E
Beta CMi
B8 Ve
2.9
160
#13 6:10 Th-Ar
14
6:22
900
+3:32
E
Beta Gem
K0 IIIb
1.1
328
#15 6:40 Th-Ar
16
6:50
900
+1:36
E
Alpha Leo
B7 Vn
1.3
156
#17 7:08 Th-Ar
18
7:18
3600
-0:20
E
Kappa Dra
B6 IIIpe
3.9
110
#19 8:21 Th-Ar   clouds came during the exposure
20
8:39
1200
-2:26
E
Delta Sco
B0 IVe
1.6
138
#21 9:02 Th-Ar   thin clouds all over
22
9:12
1200
-1:52
E
Delta Sco
B0 IVe
1.6
124
#23 9:35 Th-Ar   cloudy
24-28
9:52
4

E
Flat


4196

29-33
10:05
0

E
Bias


76