Earthdata
CMR Virtual Directories

Ground-Based Global Navigation Satellite System Observation Summary Data (30-second sampling, daily files) from NASA CDDIS
temporal
1998
11

Day	File Count
01	173
02	176
03	173
04	170
05	172
06	164
07	166
08	174
09	170
10	167
11	171
12	170
13	172
14	178
15	180
16	175
17	179
18	175
19	181
20	183
21	175
22	178
23	177
24	173
25	179
26	175
27	181
28	176
29	177
30	182

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NASA Official: Stephen Berrick
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