PlanetiQ provides Global Navigation Satellite System (GNSS) Radio Occultation (RO) data to support weather and climate forecasting and modeling, as well as space weather. PlanetiQ's satellites carry the "Pyxis" RO sensor, capable of receiving signals from all four global GNSS constellations [GPS (U.S.), GLONASS (Russia), Galileo (Europe), and Beidou (China)], and delivering high signal-to-noise ratio (SNR) GNSS-RO data with very high vertical resolution that can enhance observations of Earth's atmosphere, including into the lower troposphere and boundary layer, where the majority of atmospheric water vapor resides and most weather occurs.

The PlanetiQ data acquired by CSDA includes:

• Neutral Atmosphere Calibrated Phase
• Neutral Atmospheric Refractivity Retrieval
• Ionosphere Total Electron Content
• Ionosphere Scintillation Calibrated Phase

Authorized Data Use and Users

All members of the U.S. Government, and researchers funded by the U.S. Government, have access to the PlanetiQ Global Navigation Satellite System (GNSS) Radio Occultation (RO) data products.

End User License Agreement

USG EULA

Obtaining Data

To request access to CSDA-distributed data, complete the CSDA Authorization form. The CSDA team will verify if the user is authorized for data access.

Copyright

Data products and derivatives for imagery must contain the following copyright markings (YYYY is the year of the image acquisition):

• For data products: "© PlanetiQ YYYY. All rights reserved."
• For derivatives: "Includes copyrighted material of PlanetIQ All rights reserved."
• A joint copyright notice may be used as appropriate

Authorized users should send CSDA a courtesy copy of any publications that include CSDA-provided data.

CSDA Acknowledgement

To help CSDA identify your publications, we request that you include the following acknowledgement when publishing work created using these data:

"This work utilized data made available through the NASA Commercial Satellite Data Acquisition (CSDA) Program."

Evaluation

PlanetiQ's quality assessment and data evaluation reports will be made available in the first quarter of 2026.

PlanetiQ Commercial Data

		Onramp 1 Capabilities (available, contract in sustaining mode)			New Onramp 2 Capabilities (under evaluation)"
Product Types	Neutral atmosphere “excess phase”	Bending angle & refractivity files	Calibrated TEC	Ionosphere calibrated phase	PlanetiQ Level 2 (piqLv2)
Processing level	1B	2	1B	1B	2
Time Period Available	10/26/24-10/27/24	10/26/24-10/27/24	05/10/24-05/13/24	06/01/24-8/31/24	TBD
Data format	netCDF	netCDF	netCDF	netCDF	netCDF
Similar COSMIC Data Analysis and Archive Center (CDAAC) file type	conPhs	atmPrf	podTc2	scnPhs	piqLv2 (includes info previously in conPhs + atmPrf files as well as new information such as polarized RO and grazing reflections)
Key data types	High rate dual frequency carrier phase and amplitude Transmitter & receiver positions	Profiles of bending angle vs impact height Refractivity vs geometric height, latitudes and longitudes	TEC calibrated for transmitter & receiver DCBs and local multipath Scintillation indices S4 and σφ	High rate carrier phase & amplitude Transmitter & receiver positions	High rate dual freq carrier phase & amplitude Transmitter & receiver positions Profiles of bending angle vs impact height Profiles of bending angle vs impact height Dual linear polarization phase & amplitude Isolated grazing reflection phase & amplitude
Data rates	100 Hz GPS, BDS3 & GLONASS 125 Hz Galileo	Vertical separation between points is ~ 20 m.	TEC at 1Hz Scintillation indices every 10 seconds	50 Hz for GPS, Galileo and BDS3	100 Hz GPS, BDS3 & GLONASS 125 Hz Galileo Vertical separation between points is ~ 11 m.
Key features	High rate, High SNR				High rate, High SNR
GNSS antenna type	High gain RO	High gain RO	Low gain POD	Low gain POD	High gain RO
Signal tracking	Open loop	Open loop	Closed loop	Closed loop	Open loop
Altitude range	Straight line altitude approximately  -250 to +150 km	Bending angle: near surface to 80 km Refractivity: near surface to 60 km	90 km to above satellite altitude	90 to 500 km when S4 > 0.2 for altitudes between 120 & 500 km	Straight line altitude approximately  -250 to +150 km Bending angle: near surface to 80 km Refractivity: near surface to 60 km Grazing reflections: surface
Geophysical variables
Observation geometry & atmospheric phase delay	X				X
Bending angle & index of refraction		X			X
Ionospheric TEC			X
Ionosphere scintillations	Below 150 km		S4 and σφ indices	X	Below 150 km
Es layers	X			X	X
Grazing reflections	X				X

Additional Information

For more information about PlanetiQ's commercial GNSS-RO data holdings available through NASA's CSDA program see the PlanetiQ NASA CSDA Vendor Focus webinar presentation.