CCD Observing Log of Ritter Observatory
Page  1 of  

Echelle settings UT Date:  2005 Apr 12
Observer:  ENH
LDS Settings
X-Disp Tilt 235.0 Wavelength H alpha Exposure:  20050412.*
Temp.:   RH (%):  60 Grating 6 Wavelength H alpha
Tilt 3
Echelle Tilt 20.55 Slit 275 Sky Conditions:  thin clouds, windy
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
0:20
0

E
Bias


73
check filename
06-10
0:37
5

E
Flat


3128
wind 15mph from NE
11
0:36
0

L
Bias (5x)


130

12
0:39
10

L
Flat (5x)


5704

13
1:08
300

E
Th-Ar


98

14
1:18
900
+3:25
E
Zeta Ori
O9.5 Ib
2.05
107
#15 1:35 Th-Ar
16
1:53
600
+1:55
E
Beta Gem
K0 IIIb
1.1
245
#17 2:06 Th-Ar
18
2:20
600
-0:40
E
Alpha Leo
B7 Vn
1.35
142
#19 2:33 Th-Ar  blech... 'fraid it's only gonna get worse...
20
2:42
600
+0:21
E
Alpha Leo
B7 Vn
1.35
124
#21 2:54 Th-Ar let's try this again, shall we? ...clouds
22
3:20
1

L
Ne


220
that's the last exposure time for Ne, is it supposed to look like that?
23
3:23
2

L
Ne


871
where exactly do i measure it?
24
3:28
1800
-0:45
L
Psi Leo
A7 IVn
4.5
355
through clouds.  telluric std LDS
25
4:00
1

L
Ne


279
clouds, next to nothing visible, closing
26-30
4:03
0

E
Bias


74

31
4:04
0

L
Bias (5x)


134

32
4:27
10

L
Flat (5x)


4714

33-37
4:28
4

E
Flat


4069