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Ground-Based Global Navigation Satellite System Observation Summary Data (30-second sampling, daily files) from NASA CDDIS
temporal
2002
05
Day
File Count
01
250
02
252
03
250
04
252
05
253
06
258
07
251
08
251
09
249
10
252
11
253
12
245
13
244
14
239
15
248
16
251
17
244
18
242
19
241
20
253
21
249
22
458
23
244
24
246
25
246
26
245
27
248
28
247
29
249
30
248
31
251