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WHT publication and oversubscription statistics
UK oversubscr. factors Number of proposals Publications
Semester Dark Grey Bright UK NL SP
92A (V) 3.8 4.8 2.5 79
92B (W) 2.6 3.1 9.8 81 42
93A (X) 4.9 3.2 2.4 96
93B (Y) 3.3 3.5 3.5 94 41 55
94A 4.2 3.4 6.0 98 31
94B 3.5 2.1 2.5 65 21 30 78
95A 5.6 3.5 2.7 93 40
95B 3.7 4.1* 100 17 40 90
96A 4.6 5.9 2.4 101 17 26
96B 4.2 3.0 2.5 83 16 53 100
97A 5.3 3.9* 105 14 52
97B 2.7 3.7 2.0 81 16 35 113
98A 5.2 4.3 3.3 101 20 55
98B 3.2 3.4 3.1 78 14 39 118
99A 5.7 3.8 2.5 86 14 46
99B 2.4 2.5 3.8 80 14 37 118
00A 4.1 2.7 2.5 79 16 34
00B 1.6 2.3 6.1 81 15 51 78
01A 3.8 3.5 3.7 84 11 30
01B 3.2 3.7 2.4 75 17 30 89
02A 3.3 3.8 3.7 80 10 29
02B 2.8 3.9 4.4 78 11 35 93
03A 4.0 2.2 2.1 66 7 34
03B 2.5 2.6 3.9 64 17 30 82
04A 3.9 3.2 1.7 65 17 43
04B 3.0 3.2 2.5 73 16 49 103
05A 3.8 2.3 2.7 57 19 58
05B 76 17 58 77
06A 2.7 3.8 3.3 67 17 56
06B 1.8 3.6 2.1 61 12 45 94
07A 2.2 2.7 2.5 40 18 46
07B 2.2 3.3 5.6 61 14 58 84
08A 3.0 4.3 1.5 42 18 48
08B 1.4 1.8 3.0 46 11 53 70
09A 2.3 2.8 1.8 44 9 55
09B 2.1 2.6 2.3 51 12 54
10A 4.3 4.3 3.5 62 18 50
10B 1.8 2.7 2.0 34 13 43
11A 1.6 3.6 3.3 39 21 55
11B 1.8 4.2 2.4 40 16 49
12A 2.0 4.8 2.4 41 15 41
12B 2.6 2.9 1.0 35 18 42
13A 44
* NL and Spanish probably included.
A = Feb - Jul; B = Aug - Jan
Oversubscription factor =
number of nights requested in UK proposals to PATT divided by
number of nights available to UK. The numbers above are collected
from records kept by Bill Martin and Ian Skillen,
and from the (fairly complete) proposal archive at ING.
Publications = number of publications which appeared that year in refereed journals, using data obtained at the WHT. Lists of publications can be found amongst the La Palma technical notes. Two-year means of the numbers of proposals received from each community are shown below:
UK NL ES
94-95 89.0 19.0 35.3
96-97 92.5 15.8 41.5
98-99 86.3 15.5 44.3
00-01 79.8 14.8 36.3
02-03 72.0 11.3 32.0
04-05 67.8 17.3 50.0
06-07 57.3 15.3 51.3
08-09 45.8 12.5 52.5
Several factors may account for the significant decline in the number of
UK proposals over 1994 - 2010,
including competition from 8-m telescopes, and a small reduction in the
UK allocation of nights. There has also been a
small increase in the mean number of nights requested per proposal.
The oversubscription factor has been ~ 2.5 - 3 throughout this
period.
The semester-to-semester variations in the numbers of proposals are not consistent with a Poisson distribution. E.g the mean number of NL proposals received during 1995B - 2005A is 15, with 15 +- 2 proposals being received during 2/3 of those semsters. Historical note: the notional cost of a night on the WHT, quoted by PPARC/STFC when informing applicants of their allocations, was 17000 pounds (5000 pounds for a night on the INT), as of Jan 2001. Original text: 16 Nov 1998, last revised 18 September 2012 |
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