1. Ground-Based Global Navigation Satellite System Observation Summary Data (30-second sampling, daily files) from NASA CDDIS
  2. temporal
  3. 1998
  4. 09
DayFile Count
01172
02175
03168
04169
05169
06174
07172
08169
09175
10177
11175
12171
13172
14177
15178
16180
17175
18179
19172
20174
21172
22172
23177
24174
25173
26174
27171
28177
29167
30169