1. Ground-Based Global Navigation Satellite System Observation Summary Data (30-second sampling, daily files) from NASA CDDIS
  2. temporal
  3. 1997
  4. 04
DayFile Count
01120
02119
03120
04120
05123
06122
07119
08120
09120
10120
11124
12123
13122
14120
15122
16115
17121
18123
19128
20122
21127
22124
23122
24126
25124
26123
27117
28125
29124
30120