1. Ground-Based Global Navigation Satellite System Observation Summary Data (30-second sampling, daily files) from NASA CDDIS
  2. temporal
  3. 2009
  4. 04
DayFile Count
01410
02411
03405
04400
05405
06406
07403
08402
09399
10400
11401
12393
13399
14412
15407
16405
17401
18373
19399
20413
21397
22406
23401
24398
25392
26397
27405
28409
29420
30407