CCD Observing Log of Ritter Observatory
Page  1 of  1

Echelle settings UT Date:  2005 Feb 25
Observer:  ENH/NDM
LDS Settings
X-Disp Tilt 235.0 Wavelength H alpha Exposure:  20050225.*
Temp.:  5 C
RH (%):  75 Grating 6 Wavelength 5500 A Tilt 359
Echelle Tilt 20.55 Slit 275 Sky Conditions:  Clearing 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
0:35
0

E
Bias


74

06-10
0:50
4

E
Flat


3924

11
1:29
300

E
Th-Ar


86

12
1:38
300
+1:09
E
Beta Ori
B8 Ia
0.12
317
#13 1:45 Th-Ar
14
2:01
600
+1:11
E
Epsilon Ori
B0 Ia
1.7
180
#15 2:12 Th-Ar
16
2:29
1200
+1:37
E
Zeta Tau
B4 IIIp
3.0
125
#17 2:52 Th-Ar
18
3:09
2400
+0:28
E
Beta CMi
B8 Ve
2.9
185
#19 3:52 Th-Ar
20
4:09
900
+1:11
E
Beta Gem
K0 IIIb
1.1
308
#21 4:27 Th-Ar
22
4:43
900
-0:38
E
Alpha Leo
B7 Vn
1.35
222
#23 5:01 Th-Ar  NDM taking over
24
5:25
0

L
Bias (5x)


133

25
5:26
180

L
Fe-Ar


184

26
5:31
1200
+3:45
L
HR 2395
B5Vn
5.1
442
Tell. Std. LDS        #27 5:53 Fe-Ar
28
6:00
840
+4:13
L
HR 2395
B5Vn
5.1
275
Clouds. Flipped mirror after 14 mins. 
29
6:22
180

L
Fe-Ar


188

30-34
6:28
0

E
Bias


76
Closing up.
35
6:42
30

L
Flat (5X)


6301

36-40
6:43
4

E
Flat


4634

41
6:47
30

L
Flat (5X)


4426