1. Ground-Based Global Navigation Satellite System Observation Summary Data (30-second sampling, daily files) from NASA CDDIS
  2. temporal
  3. 2009
  4. 09
DayFile Count
01401
02404
03395
04403
05393
06405
07395
08399
09403
10405
11407
12403
13398
14398
15398
16399
17397
18390
19392
20399
21399
22400
23401
24388
25385
26399
27394
28399
29403
30400