1. Ground-Based Global Navigation Satellite System Observation Summary Data (30-second sampling, daily files) from NASA CDDIS
  2. temporal
  3. 2009
  4. 11
DayFile Count
01398
02401
03400
04400
05407
06405
07401
08399
09402
10408
11409
12413
13406
14406
15405
16412
17407
18403
19403
20400
21403
22406
23406
24404
25407
26403
27398
28397
29397
30407