1. Ground-Based Global Navigation Satellite System Observation Summary Data (30-second sampling, daily files) from NASA CDDIS
  2. temporal
  3. 2009
  4. 06
DayFile Count
01407
02400
03405
04398
05402
06399
07400
08409
09404
10410
11408
12405
13407
14405
15412
16407
17406
18401
19399
20394
21397
22406
23406
24404
25407
26400
27400
28398
29414
30409