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 # |
(UT) |
(s) |
Start |
|
|
|
Mag |
(/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 |