COBS Statistics page

COBS Statistics:
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Observations statistics for 2001

Total:
Number of active observers:
(total includes noncontributing observers)
270 of 2621
Number of active associations:
(total includes noncontributing associations)
11 of 16
Number of active countries:
(total includes noncontributing countries)
32 of 250
Number of observed comets:
(total is number of comets in COBS database)
122 of 1744
Total number of observations:
7686
- Visual Observations:
6243
- CCD Observations:
1443

Observed comets: (122)
Total:
Visual:
CCD:
Short-period comets: (65)
1226 725 501
One-apparition Short-period comets: (4)
159 154 5
Long-period comets: (53)
6301 5364 937

Most observed comets:
Total:
Visual:
CCD:
2988 2821 167
1382 1244 138
824 748 76
338 290 48
212 156 56
191 107 84
174 131 43
171 144 27
65 36 29
65 65 0

Top observers:
Total:
Visual:
CCD:
380 198 182
310 0 310
257 257 0
254 254 0
249 249 0
227 227 0
217 217 0
206 0 206
174 174 0
170 170 0

Top Associations:
Total:
Visual:
CCD:
2458 2000 458
1734 1213 521
1691 1462 229
530 323 207
424 424 0
369 369 0
165 165 0
132 132 0
90 90 0
65 65 0

Top Countries:
Total:
Visual:
CCD:
1132 354 778
983 983 0
778 571 207
445 445 0
435 435 0
421 372 49
406 391 15
387 387 0
299 299 0
283 202 81