1. Ground-Based Global Navigation Satellite System Observation Summary Data (30-second sampling, daily files) from NASA CDDIS
  2. temporal
  3. 1999
  4. 04
DayFile Count
01186
02182
03183
04182
05185
06184
07183
08182
09180
10184
11178
12186
13190
14186
15188
16188
17186
18183
19187
20186
21188
22186
23188
24181
25127
26205
27164
28189
29182
30182