Earthdata
CMR Virtual Directories

Ground-Based Global Navigation Satellite System Observation Summary Data (30-second sampling, daily files) from NASA CDDIS
temporal
1999
05

Day	File Count
01	179
02	177
03	182
04	180
05	180
06	183
07	189
08	184
09	183
10	187
11	185
12	183
13	188
14	183
15	180
16	181
17	183
18	185
19	177
20	189
21	184
22	183
23	182
24	182
25	184
26	187
27	191
28	188
29	185
30	183
31	183

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NASA Official: Stephen Berrick
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