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Ground-Based Global Navigation Satellite System Observation Summary Data (30-second sampling, daily files) from NASA CDDIS
temporal
1993
06
Day
File Count
01
69
02
64
03
71
04
68
05
67
06
68
07
68
08
67
09
70
10
68
11
67
12
68
13
68
14
69
15
67
16
70
17
68
18
69
19
69
20
61
21
65
22
60
23
63
24
60
25
61
26
59
27
61
28
65
29
61
30
59