1. Ground-Based Global Navigation Satellite System Observation Summary Data (30-second sampling, daily files) from NASA CDDIS
  2. temporal
  3. 1998
  4. 11
DayFile Count
01171
02174
03171
04168
05167
06162
07164
08172
09168
10165
11169
12168
13170
14176
15175
16174
17178
18174
19180
20182
21174
22177
23176
24172
25176
26174
27180
28175
29177
30182