CCD Observing Log of Ritter Observatory
Page  1 of  1

Echelle settings UT Date:  21 June 2005
Observer:  NDM
LDS Settings
X-Disp Tilt 235.0 Wavelength H alpha Exposure:  20050621.*
Temp.:  31C RH (%):  55 Grating 6 Wavelength H alpha
Tilt 3
Echelle Tilt 21.95 Slit 275 Sky Conditions:  Cirrus
Slit 240
Det. Temp. -95C Focus 6.28


Exp #
Start Time
(UT)
Dur
(s)
HA
Start
E/L
Object
Sp. Type
V
Mag
ADU's
(/pix)
Comments
01-05
1:34
0

E
Bias


77
At HA +1:30, dec. -1:30 telescope tracks badly, star won't stay on fiber.
06-10
2:13
4

E
Flat


3598
Guest student Vivek Ratnam (Sylvania HS) until 4:10
11
2:23
5

L
Flat 5X


1693
Files deleted - no stellar data
12
2:32
300

E
Th-Ar


91

13
2:42
3600
+2:32
E
kappa Dra
B6IIIpe
3.9
296
Tracking not too good here either at first; better later.
14
3:44
300

E
Th-Ar

91

15
4:06
1200
+0:30
E
delta Sco
B0.3IVe
1.6
235
Star jumping off to west & east
16
4:28
300

E
Th-Ar



17
4:44
3600
+0:41
E
chi Oph
B1.5Ve
4.4
186
RH 85% ... #18 5:47 Th-Ar
19
5:58
600
+0:39
E
beta Oph
K2III
2.8
179
#20 6:10 Th-Ar
21
6:23
600
-1:53
E
alpha Cyg
A2Ia
1.3
269
#22 6:36 Th-Ar
23
6:47
3000
-1:48
E
59 Cyg
Be
4.7
122
#24 7:40 Th-Ar
25
7:55
3600
-0:41
E
60 Cyg
Be
5.4
100
#26 8:58 Th-Ar
27-31
9:06
0

E
Bias


81

32-36
9:21
6

E
Flat


3505