CCD Observing Log of Ritter Observatory
Page  1 of  1

Echelle settings UT Date:  28 Jan 2005
Observer:  NDM / ENH
LDS Settings
X-Disp Tilt 235.0 Wavelength H alpha Exposure:  20050128.* Temp.:  -5C RH (%):  72 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
0:04
0

E
Bias


70
 CCD1 warm! Start over! (Files erased)
06
23:06
0

L
Bias (5X)


135
LN2 timed fill apparently took place; lines are cold.
07
23:29
30

L
Flat (5X)


3775
Biases are on the way down; will wait and try again.
08-12
0:20
6

E
Flat


3012
Another bias set should be taken in ~3 hours to check.
13
0:36
300

E
Th-Ar


81
All 8 telescope vanes finally opened with rocking
14
0:44
600
+2:43
E
gamma Cas
B0IVe
2.5
126
Another shot of LN2 needed. Plan to pump out CCD1 in AM.
15
0:59
300

E
Th-Ar


81
Suggest more shots of LN2 in ~ 3 hrs with bias
16
1:07
1800
+3:07
E
gamma Cas
B0IVe
2.5
200
All of above comments refer to beginning of night.
17
1:41
300

E
Th-Ar


82
Redo star after focus IN. Seeing mediocre.
18
1:56
0

E
Bias


72
Just checking ...
19
2:28
180

L
Fe-Ar


183

20
2:35
600
+1:54
L
10 Tau
F9 IV
4.3
419
RV std LDS. halebopp clock set, was 10 min slow
21
2:47
180

L
Fe-Ar


185
#22 3:05 Th-Ar
23
3:15 1800
+0:33
E
Zeta Tau
B4 IIp
3.0
121
#24 3:48 Th-Ar
25
4:11 900
+1:20
E
Kappa Ori
B0.5 Ia
2.1
137
#26 4:29 Th-Ar
27
4:47
2400
+0:16
E
Beta CMi
B8 Ve
2.9
131
#28 5:29 Th-Ar  ...it's been a long day, my brain's about done.
29-33
5:38
0

E
Bias


72
turned on dewcap heater
34
5:46
0

L
Bias (5x)


133

35
6:16
30

L
Flat (5x)


3569

  36-40
6:18  6

E
Flat


3568
  dewcap heater worked well, cover closed easily