COBS Statistics page

COBS Statistics:
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Observations statistics for 2003

Total:
Number of active observers:
(total includes noncontributing observers)
204 of 2669
Number of active associations:
(total includes noncontributing associations)
13 of 17
Number of active countries:
(total includes noncontributing countries)
31 of 250
Number of observed comets:
(total is number of comets in COBS database)
104 of 1783
Total number of observations:
7202
- Visual Observations:
4542
- CCD Observations:
2660

Observed comets: (104)
Total:
Visual:
CCD:
Short-period comets: (43)
1513 761 752
One-apparition Short-period comets: (3)
6 6 0
Long-period comets: (58)
5683 3775 1908

Most observed comets:
Total:
Visual:
CCD:
952 724 228
920 878 42
668 623 45
631 443 188
604 432 172
414 339 75
398 369 29
228 102 126
221 21 200
217 96 121

Top observers:
Total:
Visual:
CCD:
1637 159 1478
382 0 382
225 0 225
205 205 0
203 203 0
197 15 182
186 186 0
178 178 0
141 141 0
129 129 0

Top Associations:
Total:
Visual:
CCD:
1988 285 1703
1655 1259 396
1415 945 470
1188 1114 74
359 359 0
224 224 0
169 169 0
74 74 0
56 39 17
29 29 0

Top Countries:
Total:
Visual:
CCD:
2068 365 1703
1131 381 750
694 694 0
508 508 0
397 397 0
395 393 2
319 207 112
280 279 1
244 244 0
169 169 0