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• Organization: National Aeronautics and Space Administration
• Updated: 2025-09-11 | Harvested: September 14, 2025 at 03:24 AM

This dataset consists of ground-based Global Navigation Satellite System (GNSS) Satellite-Based Augmentation System (SBAS) Broadcast Ephemeris Data (sub-hourly files) from the NASA Crustal...

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• Organization: National Aeronautics and Space Administration
• Updated: 2025-09-11 | Harvested: September 14, 2025 at 03:26 AM

This dataset consists of ground-based Global Navigation Satellite System (GNSS) Galileo Broadcast Ephemeris Data (sub-hourly files) from the NASA Crustal Dynamics Data Information System (CDDIS)....

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• Organization: National Aeronautics and Space Administration
• Updated: 2025-03-31 | Harvested: June 28, 2025 at 02:38 PM

This derived product set consists of Global Navigation Satellite System Final Combined Station Positions/Velocities Product available from the Crustal Dynamics Data Information System (CDDIS)....

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• Organization: National Aeronautics and Space Administration
• Updated: 2025-09-11 | Harvested: September 14, 2025 at 03:35 AM

The GPM Ground Validation UND Citation Navigation Data OLYMPEX dataset supplies navigation data collected by the Cessna Citation II aircraft for flights that occurred during November 12, 2015...

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• Organization: National Aeronautics and Space Administration
• Updated: 2025-03-31 | Harvested: June 28, 2025 at 01:36 PM

The GPM Ground Validation NASA ER-2 Navigation Data OLYMPEX dataset supplies navigation data collected by the NASA ER-2 aircraft for flights that occurred during November 9, 2015 through December...

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• Organization: National Aeronautics and Space Administration
• Updated: 2025-09-10 | Harvested: October 12, 2025 at 06:19 PM

ATTREX-Aircraft_navigational_meteorological_Measurements are in-situ navigational and meteorological measurements collected onboard the Global Hawk Uninhabited Aerial System (UAS) during the...

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• Organization: National Aeronautics and Space Administration
• Updated: 2025-09-11 | Harvested: November 04, 2025 at 09:43 PM

This dataset consists of ground-based Global Navigation Satellite System (GNSS) Beidou Broadcast Ephemeris Data (hourly files) from the NASA Crustal Dynamics Data Information System (CDDIS). GNSS...

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• Organization: National Aeronautics and Space Administration
• Updated: 2025-09-11 | Harvested: November 04, 2025 at 09:43 PM

This dataset consists of ground-based Global Navigation Satellite System (GNSS) Beidou Broadcast Ephemeris Data (daily files) from the NASA Crustal Dynamics Data Information System (CDDIS). GNSS...

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• Organization: National Aeronautics and Space Administration
• Updated: 2025-09-10 | Harvested: October 30, 2025 at 09:21 PM

The CAMEX-3 DC-8 Navigation Data Acquisition and Distribution System (DADS) data files contain information recorded by navigation and data collection systems onboard the NASA DC-8 aircraft. These...

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• Organization: National Aeronautics and Space Administration
• Updated: 2025-04-01 | Harvested: October 31, 2025 at 09:59 PM

The GPM Ground Validation NASA DC-8 Navigation Data OLYMPEX dataset supplies navigation data collected by the NASA DC-8 aircraft for flights that occurred during November 5, 2015 through December...

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• Organization: National Aeronautics and Space Administration
• Updated: 2025-09-11 | Harvested: October 02, 2025 at 02:47 AM

This dataset consists of ground-based Global Navigation Satellite System (GNSS) Quasi-Zenith Satellite System (QZSS) Broadcast Ephemeris Data (hourly files) from the NASA Crustal Dynamics Data...

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• Organization: National Aeronautics and Space Administration
• Updated: 2025-09-11 | Harvested: October 29, 2025 at 09:10 PM

This dataset consists of ground-based Meteorological Data (hourly, 24 hour files) from instruments co-located with Global Navigation Satellite System (GNSS) receivers from the NASA Crustal...

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• Organization: National Aeronautics and Space Administration
• Updated: 2025-09-11 | Harvested: October 12, 2025 at 06:10 PM

The GRIP DC-8 Navigation and Housekeeping Data contains aircraft navigational data obtained during the GRIP campaign (15 Aug 2010 - 30 Sep 2010). The major goal was to better understand how...

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• Organization: National Aeronautics and Space Administration
• Updated: 2025-09-11 | Harvested: November 04, 2025 at 09:43 PM

This dataset consists of ground-based Global Navigation Satellite System (GNSS) Observation Data (30-second sampling, hourly files) from the NASA Crustal Dynamics Data Information System (CDDIS)....

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• Organization: National Aeronautics and Space Administration
• Updated: 2025-09-11 | Harvested: September 14, 2025 at 03:26 AM

This dataset consists of ground-based Global Navigation Satellite System (GNSS) Galileo Broadcast Ephemeris Data (hourly files) from the NASA Crustal Dynamics Data Information System (CDDIS). GNSS...

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• Organization: National Aeronautics and Space Administration
• Updated: 2025-09-11 | Harvested: September 14, 2025 at 03:24 AM

This dataset consists of ground-based Global Navigation Satellite System (GNSS) Satellite-Based Augmentation System (SBAS) Broadcast Ephemeris Data (hourly files) from the NASA Crustal Dynamics...

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• Organization: Department of the Interior
• Updated: 20200806 | Harvested: July 18, 2025 at 12:29 AM

The T-3 (Fletcher's) Ice Island in the Arctic Ocean was the site of a scientific research station re-established by the Naval Arctic Research Laboratory starting in 1962. Lamont Geological...

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• Organization: National Aeronautics and Space Administration
• Updated: 2025-09-11 | Harvested: October 30, 2025 at 09:16 PM

This derived product set consists of version 1 of the Global Navigation Satellite System Final Troposphere Zenith Path Delay (ZPD) Product (daily files by station) from the NASA Crustal Dynamics...

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• Organization: Department of the Interior
• Updated: 20240318 | Harvested: July 18, 2025 at 09:46 AM

These data were collected under a cooperative agreement between the Massachusetts Office of Coastal Zone Management (CZM) and the U.S. Geological Survey (USGS), Coastal and Marine Geology Program,...

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