1. Ground-Based Global Navigation Satellite System Observation Summary Data (30-second sampling, daily files) from NASA CDDIS
  2. temporal
  3. 1997
  4. 09
DayFile Count
01120
02121
03123
04131
05133
06259
07260
08263
09138
10131
11130
12130
13128
14132
15135
16135
17131
18136
19134
20134
21134
22138
23129
24127
25135
26136
27138
28129
29131
30132