Earthdata
CMR Virtual Directories

Ground-Based Global Navigation Satellite System Observation Summary Data (30-second sampling, daily files) from NASA CDDIS
temporal
2021
06

Day	File Count
01	684
02	683
03	682
04	677
05	672
06	670
07	688
08	693
09	684
10	678
11	686
12	696
13	686
14	686
15	689
16	684
17	692
18	694
19	690
20	693
21	682
22	685
23	690
24	690
25	687
26	690
27	694
28	693
29	685
30	685

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NASA Official: Doug Newman
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