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NOAO Newsletter - Cerro Tololo Inter-American Observatory - June 1996 - Number 46


Observing Request Statistics: August 1996-January 1997

4-m Telescope:  114 nights

   Requests        Nights Requested
Dark     Bright     Dark     Bright    Instrument    Nights      %
 11        9         32        43      Argus           75     15.9 
  0 	   5          0        13      COB             13      2.8 
  5        2         13         3      CF/CCD          16      3.4 
 33        6        114        19      CS/CCD         133     28.2 
  1       14          4        57      Ech/CCD         61     13.0 
  0        7          0        22      CIRIM           22      4.7 
  0       11          0        38      IR/IRS 	       38      8.1 
 20        1         76         6      PF/CCD          82     17.4 
  1        0          6         0      PF/Plates        6      1.3 
  5        0         16         0      RF-P            16      3.4
  2        0          9         0      Visitor          9       .9
 --       --        ---       ---                     ---    -----
 78       55        270       201                     471    100.0

				      Last	  Semester  
			    Now     Semester     Before Last
No. of requests             133        102           119 
No. of nights requested     471        354           415
Oversubscription           4.13       2.95          2.46
Average request            3.54       3.47          3.49


1.5-m Telescope: 163 nights

   Requests        Nights Requested
Dark     Bright     Dark     Bright    Instrument    Nights      %
  4         1        19         7      ASCAP           26      9.6 
 13         1        67         2      CF/CCD          69     25.6
  6         7        37        28      CS/CCD          65     24.1 
  0         3         0        15      Ech/CCD         15      5.6 
  0        17         0        84      CIRIM           84     31.1
  0         2         0         6      IR/IRS           6      2.2 
 --        --       ---       ---                     ---    -----
 21        31       123       142                     270    100.0

				      Last	  Semester  
			    Now     Semester     Before Last
No. of requests              55         57            72 
No. of nights requested     270        265           368
Oversubscription            1.66      1.65           2.18
Average request             4.91      4.65           5.11


1-m Telescope:  182 nights

  Requests         Nights Requested
Dark     Bright     Dark     Bright    Instrument    Nights       %
  7        6         101      184      ASCAP          285     100.0

				      Last	  Semester  
			    Now     Semester     Before Last
No. of requests              13         15             11 
No. of nights requested     285        191            115
Oversubscription           1.57       1.06           0.68
Average request           21.92      12.73          10.45


0.9-m Telescope:  169 nights

   Requests        Nights Requested
Dark     Bright     Dark     Bright    Instrument    Nights       %
 19        8         156       65      CF/CCD         221     100.0

				      Last	  Semester  
			    Now     Semester     Before Last
No. of requests              27         26            31 
No. of nights requested     221        203           215
Oversubscription           1.31       1.17          1.26
Average request            8.19       7.81          6.94


Schmidt Telescope: 140 nights  NF/CCD  17 requests for 180 nights 100%

				      Last	  Semester  
			    Now     Semester     Before Last
No. of requests              17          9             14 
No. of nights requested     180        125            155
Oversubscription            1.29      1.07           0.84
Average request            10.59     13.89          11.07


ESO 3.6-m Telescope:  12 nights

ADONIS   2 requests for 4 nights   44.4 
TIMMI    1 request for 3 nights    33.3 
EFOSC1   1 request for 2 nights    22.2
	 4 requests for 9 nights  100.0

			    Now
No. of  requests              4 
No. of nights requested       9
Oversubscription           0.75 
Average request            2.25


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