CCD Observing Log of Ritter Observatory
Page  1 of  1

Echelle settings UT Date: 9 Sep 2006
 Observer: GBT/NDM
 LDS Settings
X-Disp Tilt: 235.0 λc: Hα Exposure: 20060909.*
 Temp. (°C): 34
 RH (%): 70
 Grating: 6 λc: Hα Tilt: 4o
Echelle Tilt: 21.95 Slit: 275 Sky Conditions: clear/partly cloudy
 Slit: 255 Det. Temp. -93.5oC Focus: 5.81


Exp #
Start Time
(UT)
Dur
(s)
HA
Start
E/L
Object
Sp. Type
V
Mag
ADU's
(/pix)
 Comments
01-05
 00:34
 0
E
 bias

78
  
06-10
 01:02
 2
E
 flat

2866
 473 ADU's for 3 sec? changed hole size - better counts
11
 1:16
 300
E
 Th-Ar

114
12
 1:27
 900
 +2:28
 E
 zeta Oph
 O9.5 Vn
 2.6
 256
 telluric std.; #13 1:46 Th-Ar
14
 2:10
 300
 +2:04
 E
 beta Oph
 K2 III
 2.8
 254
 RV std.; #15 2:19 Th-Ar
16
 2:35
 300
 -0:28
 E
 alpha Cyg
 A2 Ia
 1.3
 610
 #17 2:44 Th-Ar
18
 3:02
 1800
 -0:08
 E
 55 Cyg
 B3 Iae
 4.8
 136
 passing clouds; #19 3:36 Th-Ar
20
 3:49
 3600
 +0:25
 E
 60 Cyg
 B1 Ve
 5.4
 156
 NDM taking over during exposure ... clds ... #21 4:52 Th-Ar
22
 5:05
 1800
 +1:25
 E
 66 Cyg
 B2Vne
 4.4
 204
 Clds, star drifted off ... #23 5:38 Th-Ar
24
 5:50
 1800
 +1:42
 E
 nu Cep
 A2Ia
 4.3
 218
 #26 6:25 Th-Ar
26
 6:39
 1800
 +0:23
 E
 rho Cas
 G2IaOe
 4.4
 255
 #27 7:12 Th-Ar ... Seeing is worse
28
 7:50
 2768 -2:20
 E
 28 Tau
 B8IVevar
 5.0
 137
 Delay in finding star; wrong coords on card. Made new card. ... Clds
29
 8:39
 300
E
 Th-Ar

115
 Finally aborted due to clds; bad all along
30
 8:57
 1200
 -3:02
 E
 zeta Tau
 B2IVe
 3.0
 358
 Clds better ... #31 9:20 Th-Ar ...edit epoch ... done
32
 9:32
 2700
 -2:28
 E
 omega Ori
 B3IIIe
 4.6
 136
 More clds ... #33 10:27 Th-Ar
34-38
 10:34
 0
E
 Bias

81
39-43
 10:47
 1
E
 Flat

2838