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Observations statistics for C/1987 B1

Total:
Number of active observers:
(total includes noncontributing observers)
42 of 2668
Number of active associations:
(total includes noncontributing associations)
7 of 17
Number of active countries:
(total includes noncontributing countries)
12 of 250
Total number of observations:
272
- Visual Observations:
272
- CCD Observations:
0

Top observers:
Total:
Visual:
CCD:
27 27 0
19 19 0
19 19 0
15 15 0
14 14 0
12 12 0
12 12 0
10 10 0
9 9 0
9 9 0
8 8 0
8 8 0
8 8 0
7 7 0
7 7 0
7 7 0
6 6 0
6 6 0
6 6 0
5 5 0
4 4 0
4 4 0
4 4 0
4 4 0
4 4 0
4 4 0
4 4 0
4 4 0
3 3 0
3 3 0
3 3 0
2 2 0
2 2 0
2 2 0
2 2 0
2 2 0
2 2 0
1 1 0
1 1 0
1 1 0
1 1 0
1 1 0

Top Associations:
Total:
Visual:
CCD:
78 78 0
62 62 0
47 47 0
37 37 0
31 31 0
12 12 0
5 5 0

Top Countries:
Total:
Visual:
CCD:
62 62 0
40 40 0
38 38 0
36 36 0
29 29 0
25 25 0
19 19 0
7 7 0
6 6 0
5 5 0
3 3 0
2 2 0