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
01409
02410
03404
04399
05404
06405
07402
08401
09399
10400
11401
12393
13399
14412
15407
16405
17401
18373
19389
20411
21397
22406
23401
24398
25392
26397
27405
28409
29418
30406