Spire Global Subsidiary, Inc., (Spire) designs, builds, and operates a growing constellation of over 100 3U Low Earth Multi-Use Receiver (LEMUR) small satellites designed to collect radio frequency (RF) signals from Low Earth Orbit (LEO). The company offers a suite of commercial RF sensing products, including a catalog of atmosphere, ionosphere, and weather data services derived from collections of Global Navigation Satellite System (GNSS) signals.
Spire LEMUR satellites are equipped with the STRATOS payload, which collects GNSS signals from which Spire can derive a range of Earth observation data for climate and space weather research, among other applications.
Authorized Data Use and Users
All members of the U.S. Government and researchers funded by the U.S. Government have access to Spire data for scientific use. All data requests must be approved by CSDA. Access to Spire data is governed by the USG End User License Agreement.
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. Once verified, the user will be notified
- Search and download Spire data using the CSDA Satellite Data Explorer (SDX). An Earthdata Login is required
Copyright
Data products and derivatives must contain the following copyright markings (where YYYY is the year of the image acquisition):
- For data products: “© Spire Global, Inc. YYYY. All rights reserved.”
- For derivatives: “Includes copyrighted material of Spire Global, Inc. All rights reserved.”
- A joint copyright notice may be used as appropriate
Authorized users should send Spire a courtesy copy of any publications that include Spire data.
CSDA Acknowledgment
To help CSDA identify your publications, we request that you include the following acknowledgment when publishing work created using these data:
"This work utilized data made available through the NASA Commercial Satellite Data Acquisition (CSDA) Program."
Research Using Spire Data
Spire CSDA Publications in Zotero
Spire Commercial Data
Spire LEMUR Constellation and Instrument Characteristics
| Parameter | Value |
|---|---|
| Design life | 3 years |
| Built by | Spire |
| Volume | 100 x 100 x 340.5 mm (3U) 100 x 226.3 x 340.5 mm (6U) |
| Total Mass | Up to 6kg (3U) or 12kg (6U) |
| ADCS | 3-axis stabilized, agile and precise |
| Orbit Average Power Usage | 8–12 Watts, 35 Watts Peak |
| Transmitters | UHF: 400–450 MHz, 9600 baud S-band: 2.20GHz, 1Mbit X-band: 8.2GHz, 40Mbit |
| Receivers | UHF: 400–450 MHz, 9600 baud S-Band: 2.032GHz, 1Mbit |
| Orbit Inclination | |
| Payloads |
|
| Observables |
|
Spire GNSS Earth Observation Satellites
3U form factor
|
3U form factor
|
3U form factor
|



