Earthdata
CMR Virtual Directories

Ground-Based Global Navigation Satellite System Observation Summary Data (30-second sampling, daily files) from NASA CDDIS
temporal
2017
02

Day	File Count
01	1149
02	206
03	271
04	486
05	485
06	481
07	483
08	495
09	504
10	499
11	501
12	503
13	512
14	501
15	488
16	486
17	479
18	482
19	498
20	508
21	498
22	510
23	487
24	506
25	505
26	508
27	513
28	631

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NASA Official: Stephen Berrick
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