The Commercial Smallsat Data Acquisition (CSDA) program evaluates and procures data from commercial vendors that advance NASA’s Earth science research and applications activities.
Currently, data acquired during the evaluations of Planet, Maxar (formerly DigitalGlobe, Inc.), and Spire Global are available. Data from the Teledyne Brown Engineering, Inc., DLR Earth Sensing Imaging Spectrometer (DESIS) also are available through a separate collaboration with the International Space Station (ISS). See the table below to learn how to access vendor-specific data. All data products are available through CSDA at no cost to authorized researchers and are subject to scientific use licenses.
The commercial data currently distributed by NASA are available under different scientific use licenses and various access portals. Please see table below for data access portals and vendor-specific end user license agreement (EULA) information. Check back for updates on new data acquisitions.
Data and End User License Agreements
Vendor | Data Available | Date Range | Who is authorized to use the data | Scientific use only | 3rd party publication requires permission | Where to get archived data | Can PIs submit new orders | EULA |
---|---|---|---|---|---|---|---|---|
Planet | PlanetScope | 6/29/2014 - Present |
U.S. Federal civil agencies; NSF (funded) researchers. | Yes | No* | Planet Explorer | Yes | Planet Expanded EULA |
RapidEye | 02/1/2009 - 12/31/2019 |
|||||||
SkySat | 3/10/2015 - 12/12/2019 |
SDX | No | |||||
Spire | GNSS Radio Occultation | 9/24/2018 - 12/9/2018; 12/14/2018 - 3/8/2019; 11/1/2019 - onward |
U.S. Government (funded) researchers | Yes | No* | SDX |
Yes |
Spire USG EULA |
GNSS Grazing Angle Reflectometry | 1/09/2019 -4/18/2019; 11/1/2019 - onward |
|||||||
GNSS Grazing Angle Reflectometry Sea Ice Product | 03/01/2020 - onward | |||||||
GNSS Grazing Angle Reflectometry Altimetry Product | 06/16/2020 - onward | |||||||
BiStatic Radar Profiles | 5/1/2021 - onward |
|||||||
Ionospheric Profiles | 11/1/2019 - onward |
|||||||
Magnetometer | 11/1/2019 - onward |
Request authorization | ||||||
Raw intermediate frequency | 6/17/2020; 6/20/2020; 6/21/2020; 9/8/2020 |
By request (PDF) | ||||||
Satellite Precise Orbital Determination (POD) and Satellite Attitude | 9/24/2018 -4/18/2019; 11/1/2019 - onward |
SDX | ||||||
Scintillation | 11/1/2019 - onward |
|||||||
Total Electron Content | 11/1/2019 - onward |
|||||||
Maxar (formerly DigitalGlobe) | WorldView 1 | 09/18/2007-present | NASA (funded) researchers | Yes | Yes | CAD4NASA | Yes | NextView License |
WorldView 2 | 10/08/2009-present | |||||||
WorldView 3 | 08/13/2014-present | |||||||
GeoEye-1 | 09/06/2008-present | |||||||
QuickBird | 10/18/2001-01/27/2015 | |||||||
IKONOS | 10/24/1999-03/31/2015 | |||||||
WorldView 4 | 12/01/2016 - 1/07/2019 |
MAXAR EULA | ||||||
Teledyne Brown Engineering, Inc. | DESIS | 11/21/2018 - Present |
U.S. Government (funded) researchers | Yes | No* | TCloudHost | Yes | DESIS EULA |
Polar Geospatial Center | EarthDEM | U.S. Government (funded) researchers | Yes | No | SDX | Yes | NextView License |
* Principal Investigators should submit publications as a courtesy copy to the vendor.
All data requests must be approved by CSDA data managers. Contact us to provide your name, email address, and pertinent information (grant number, contract number, etc.) to indicate that you are authorized to use the data. The CSDA team will verify if the user is authorized for data access first. Once verified, the user will be provided with additional information on how to request and access data.
Get answers to frequently asked questions about accessing and requesting commercial data.
The tables below list available satellites, their orbits, and their sensors' temporal and spectral resolutions.
- Planet
-
Planet has successfully launched nearly 300 satellites to space and currently operates approximately 150 Dove satellites, and 13 SkySat satellites. Planet downlinks more than 300 million km2 of imagery daily.
A PlanetScope satellite. Image courtesy of Planet. PlanetScope/Dove Satellite Constellation and Sensor Characteristics
Mission Characteristics International Space Station Orbit Orbit Altitude (reference) 400 km (51.6° inclination) Max/Min Latitude Coverage +/- 52° (depending on season) Equator Crossing Time Variable Sensor Type Three-band frame Imager or four-band frame Imager with a split-frame NIR filter Spectral Bands Blue: 455-515 nm
Green: 500-590 nm
Red: 590-670 nm
NIR: 780-860 nmGround Sample Distance (nadir) 3.0 m (approximate) Frame Size 20 km x 12 km (approximate) Maximum Image Strip per Orbit 8,100 km2 Revisit Time Variable Image Capture Capacity Variable Camera Dynamic Range 12-bit PlanetScope/Dove in Sun-Synchronus Orbit
Mission Characteristics Dove Classic (PS2) Dove-R (PS2.SD) SuperDove (PSB.SD) Orbit Altitude (reference) 450–580 km Inclination ~98° Max/Min Latitude Coverage ±81.5° (depending on season) Equator Crossing Time 9:30-11:30 am (local solar time) Sensor Type Three-band frame Imager or four-band frame Imager with a split-frame NIR filter Four-band frame imager
with butcher-block filterEight-band frame imager
with butcher-block filterSpectral Bands Blue: 455-515 nm
Green: 500-590 nm
Red: 590-670 nm
NIR: 780-860 nmBlue: 464-517 nm
Green: 547-585 nm
Red: 650-682 nm
NIR: 846-888 nmCoastal Blue 431-452 nm
Blue: 465-515 nm
Green I: 513-549 nm
Green II: 547- 583 nm
Yellow: 600-620 nm
Red: 650-680 nm
Red-Edge: 697-713 nm
NIR: 845-885 nmGround Sample Distance (nadir) 3.7 m (approximate) Frame Size 24 km x 8 km (approximate) 24 km x 16 km (approximate) 32.5 km x 19.6 km (approximate) Maximum Image Strip per Orbit 20,000 km2 Revisit Time Near-daily at nadir Image Capture Capacity ~350 million km2/day Camera Dynamic Range 12-bit The RapidEye satellite. Image courtesy of Planet. RapidEye Satellite Constellation and Sensor Characteristics
Mission Characteristics Information Number of Satellites 1 Orbit Altitude 630 km in Sun-Synchronous Orbit Equator Crossing Time 11:00 am local time (approximately) Sensor Type Multispectral push broom Spectral Bands Blue: 440 – 510 nm
Green: 520 – 590 nm
Red: 630 – 685 nm
Red Edge: 690 – 730 nm
NIR: 760 – 850 nmGround Sampling Distance (nadir) 6.5 m Swath Width 77 km Maximum Image Strip per Orbit Up to 1500 km of image data per orbit Revisit Time Daily (off-nadir) / 5.5 days (at nadir) Image Capture Capacity > 6 million km2/day Camera Dynamic Range 12-bit A SkySat satellite. Image courtesy of Planet. SkySat Satellite Constellation and Sensor Characteristics
Attribute Value Mass 110 kg Dimensions 60 x 60 x 95 cm Total DeltaV 180 m/s Onboard Storage 360 GB + 360 GB cold spare storage RF Communication X-band downlink (payload): variable, up to 580 Mbit/s
X-band downlink (telemetry): 64 Kbit/s
S-band uplink (command): 32 Kbit/sDesign Life ~6 years Geolocation Knowledge 30 m CE90 in a 500 km altitude orbit Ground Sample Distance [SkySat-1, SkySat-2]
Panchromatic: 0.86 m
Multispectral: 10 m
[SkySat-3 – SkySat-13]
Panchromatic: 0.72 m
Multispectral: 1.0 m 2.3 targets (6.6 x 10 km) per minuteRevisit (per satellite) 4-5 days
*Reference altitude 500 kmEquatorial Crossing (UTC) 10:30 – Current C-Gen satellites
13:00 – SkySat-1 and SkySat-2
13:00 – Block-2 C-Gen satellitesImage Configurations Multispectral Sensor (Blue, Green, Red, NIR)
Panchromatic SensorProduct Framing SkySat Satellites have three cameras per satellite, which capture
overlapping strips. Each of these strips contain overlapping scenes.
One scene is approximately 2560 x 1080 pixelsSensor Type CMOS Frame Camera with Panchromatic and Multispectral halves Spectral Bands Blue: 450 – 515 nm
Green: 515 – 595 nm
Red: 605 – 695 nm
NIR: 740 – 900 nm
Pan: 450 – 900 nm - Spire
-
Spire designs, builds, and operates a growing constellation of over 120 3U Low Earth Multi-Use Receiver (LEMUR) satellites tasked with collecting Radio Frequency (RF) signals from low Earth orbit. The company offers a suite of commercial RF sensing products, including a catalog of atmosphere, ionosphere, and weather data services derived from Global Navigation Satellite System (GNSS) signals collection.
The Spire-designed STRATOS payload collects these GNSS signals from which Spire can derive useful Earth Observation data types for climate and space weather research, among other applications. To support their mission, the company owns and operates over 30 ground stations and a robust data pipeline for quickly and securely moving data from orbit to cloud.
Spire LEMUR Constellation and Sensor 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, 40MbitReceivers UHF: 400-450 MHz, 9600 baud
S-Band: 2.032GHz, 1MbitOrbit Inclination Various: 83°, 51.6° (ISS), 37°, Equatorial, Polar - Sun Synchronous Payloads - Automatic Identification System (AIS) receiver
- STRATOS GNSS radio occultation (RO) & precise orbit determination (POD)
- POD antenna: zenith, L1/L2 RHCP
- High-gain RO antennas: fore/aft, L1/L2 RHCP
- Automatic Dependent Surveillance-Broadcast (ADS-B)
Observables - GNSS Radio Occultation
(L0-L2 atmos. prf) - Grazing Angle GNSS-R
(L0-L2 sea ice type & altimetry) - Conventional GNSS-R
(L0-L2 soil moisture, ocean winds & MSS) (under evaluation) - Raw IF captures (GNSS-R)
- Precise Orbit Determination
(L0-L1) - Space Weather (TEC, EDP, Scintillation) (L0-L2)
- Magnetometer (simple sensor data) (L0)
Spire GNSS Earth Observation Satellites
Spire GNSS-RO satellites 3U form factor - Moderate gain, dual antennas (rising/setting RO)
- Multi-GNSS signals tracked
- Rapid on-orbit innovation
Spire GNSS-R satellites (Batch 1) 3U form factor - Dual nadir antennas
- Multi-GNSS signals tracked
- 30 simultaneous reflections
- First launched DEC 2019
Spire GNSS-R satellites (Batch 2) 3U form factor - Triple GNSS-R antennas
- Multi-GNSS signals tracked
- 45 simultaneous reflections
- Advanced calibration
- First launched JAN 2021
- Maxar (formerly Digital Globe)
-
The Worldview-4 satellite. Image courtesy of DigitalGlobe. DigitalGlobe Worldview-4 Specifications
Attribute Value Orbit Altitude: 617 km
Type: Sun Synchronous, 10:30 am descending Node
Period: 97 min.Life Estimated service life: 10 to 12 years Spacecraft size and aperture Size: 5.3 m (17.7 ft) tall x 2.5 m (8 ft) across
7.9 m (26 ft) across deployed solar arrays
Aperture: 1.1mSensor bands Panchromatic: 450 - 800 nm
4 Multispectral:
Red: 655 - 690 nm
Green: 510 - 580 nm
Blue: 450 - 510 nm
Near-IR: 780 - 920 nmSensor resolution
(or GSD, ground sample distance;
off-nadir is geometric mean)Panchromatic Nadir: 0.31 m
20° Off-Nadir: 0.34 m
56° Off-Nadir: 1.00 m
Multispectral Nadir: 1.24 m
20° Off-Nadir: 1.38 m
56° Off-Nadir: 4.00 mDynamic range 11-bits per pixel Swath width At nadir: 13.2 km Attitude determination and control Type: 3-axis Stabilized
Actuators: Control Moment Gyros (CMGs)
Sensors: Star trackers, precision IRU, GPSPointing accuracy and knowledge Accuracy: 170 m at 40 off-nadir
Knowledge: Supports geolocation accuracy belowRetargeting agility Time to Slew 200 km: 10.6 sec Onboard storage 3200 Gb solid state with EDAC Communications Image & ancillary data: 800 Mbps X-band
Housekeeping: 120 kbps real time, X-band
Command: 64 kbps S-bandMax contiguous area collected in a
single pass (30° off-nadir angle)Mono: 66.5 km x 112 km (5 strips)
Stereo: 26.6 km x 112 km (2 pairs)Revisit frequency
(at 40°N latitude)1 m GSD: < 1.0 day
Total constellation > 4.5 accesses/dayGeolocation accuracy
(CE90)Predicted < 5 m CE90 without ground control Capacity 680,000 sq km per day The Worldview-3 satellite. Image courtesy of DigitalGlobe. DigitalGlobe Worldview-3 Specifications
Attribute Value Orbit Altitude: 617 km
Type: Sun synchronous, 10:30 am descending node
Period: 97 min.Life Spec Mission Life: 7.25 years
Estimated service life: 10 to 12 yearsSpacecraft size, mass and power Size: 5.7 m (18.7 ft) tall x 2.5 m (8 ft) across 7.1 m (23 ft) across deployed solar arrays
Mass: 2800 kg (6200 lbs)
Power: 3.1 kW solar array, 100 Ahr batterySensor Bands Panchromatic: 450–800 nm 8 Multispectral:
Coastal: 397–454 nm
Blue: 445–517 nm
Blue: 445–517 nm
Green: 507–586 nm
Yellow: 580–629 nmRed: 626–696 nm
Red Edge: 698–749 nm
Near-IR1: 765–899 nm
Near-IR2: 857–1039 nm8 SWIR Bands:
SWIR-1: 1184–1235 nm
SWIR-2: 1546–1598 nm
SWIR-3: 1636–1686 nm
SWIR-4: 1702–1759 nm
SWIR-5: 2137–2191 nm
SWIR-6: 2174–2232 nm
SWIR-7: 2228–2292 nm
SWIR-8: 2285–2373 nm12 CAVIS Bands:
Desert Clouds: 405–420 nm
Water-3: 930–965 nm
Aerosol-1: 459–509 nm
Green: 525–585 nm
Aerosol-2: 635–685 nm
Water-1: 845–885 nm
Water-2: 897–927 nm
NDVI-SWIR: 1220–1252 nm
Cirrus: 1365–1405 nm
Snow: 1620–1680 nm
Aerosol-1: 2105–2245 nm
Aerosol-2: 2105–2245 nmSensor resolution (or GSD, Ground Sample Distance; off-nadir is geometric mean) Panchromatic nadir: 0.31 m
20° off-nadir: 0.34 m
Multispectral nadir: 1.24 m
20° off-nadir: 1.38 mSWIR nadir: 3.70 m
20° off-nadir: 4.10 m
CAVIS nadir: 30.00 mDynamic range 11-bits per pixel Pan and MS; 14-bits per pixel SWIR Swath width At nadir: 13.1 km Attitude determination and control Type: 3-axis Stabilized
Actuators: Control Moment Gyros (CMGs)
Sensors: Star trackers, precision IRU, GPSPointing accuracy and knowledge Accuracy: <500 m at image start/stop
Knowledge: Supports geolocation accuracy belowRetargeting agility Time to Slew 200 km: 12 sec Onboard storage 2199 Gb solid state with EDAC Communications Image & Ancillary Data: 800 and 1200 Mbps X-band
Housekeeping: 4, 16, 32, or 64 kbps real time, 524 kbps stored, X-band
Command: 2 or 64 kbps S-bandMax contiguous area collected in a single pass (30° off-nadir angle) Mono: 66.5 km x 112 km (5 strips)
Stereo: 26.6 km x 112 km (2 pairs)Revisit frequency 1 m GSD: <1.0 day (at 40°N Latitude) 4.5 days at 20° off-nadir or less Geolocation accuracy (CE90) Predicted <3.5 m CE90 without ground control Capacity 680,000 sq km per day The Worldview-3 satellite. Image courtesy of DigitalGlobe. DigitalGlobe Worldview-2 Specifications
Attribute Value Orbit Altitude: 770 km
Type: Sun synchronous, 10:30 am descending node
Period: 100 min.Mission Life 10-12 years, including all consumables and degradables (e.g. propellant) Spacecraft Size, Mass and Power 5.7 m (18.7 ft) tall x 2.5 m (8 ft) across
7.1 m (23 ft) across the deployed solar arrays
2615 kg (5765 lbs)
3.2 kW solar array, 100 Ahr batterySensor Bands Panchromatic: 450 - 800 nm
8 Multispectral:
Coastal: 400 - 450 nm Red: 630 -690 nm
Blue: 450 - 510 nm Red Edge: 705 - 745 nm
Green: 510 - 580 nm Near-IR1: 770 - 895 nm
Yellow: 585 - 625 nm Near-IR2: 860 - 1040 nmSensor Resolution Panchromatic: 0.46 m GSD at nadir, 0.52 m GSD at 20° off-nadir
Multispectral: 1.85 m GSD at nadir, 2.07 m GSD at 20° off-nadirDynamic Range 11-bits per pixel Swath Width 16.4 km at nadir Attitude Determination and Control 3-axis stabilized
Actuators: Control Moment Gyros (CMGs)
Sensors: Star trackers, solid state IRU, GPSPointing Accuracy and Knowledge Accuracy: < 500 m at image start and stop
Knowledge: Supports geolocation accuracy belowRetargeting Agility Time to Slew 200 km: 10 sec Onboard Storage 2199 Gb solid state with EDAC Communications Image and Ancillary Data: 800 Mbps X-band
Housekeeping: 4, 16 or 32 kbps real-time, 524 kbps stored, X-band
Command: 2 or 64 kbps S-bandMax Contiguous Area Collected in a Single Pass
(30° off-nadir angle)Mono: 138 x 112 km (8 strips)
Stereo: 63 x 112 km (4 pairs)Revisit Frequency (at 40°N Latitude) 1.1 days at 1 m GSD or less
3.7 days at 20° off-nadir or less (0.52 m GSD)Geolocation Accuracy (CE90) Demonstrated < 3.5 m CE90 without ground control Capacity 1 million km2 per day The Worldview-1 satellite. Image courtesy of DigitalGlobe. DigitalGlobe Worldview-1 Specifications
Attribute Value Orbit Altitude: 496 km
Type: Sun synchronous, 10:30 am descending node
Period: 95 min.Altitude: 496 km
Type: Sun Synchronous. 1:30 pm descending node
Period: 95 min.Mission Life 10-12 years, including all consumables and degradables (e.g. propellant) Spacecraft Size, Mass and Power 3.6 m (12 ft) tall x 2.5 m (8 ft) across
7.1 m (23 ft) across the deployed solar arrays
2290 kg (5038 lbs)
3.2 kW solar array, 100 Ahr batterySensor Bands Panchromatic: 400 - 900 nm Sensor Resolution 50 cm Ground Sample Distance (GSD) at nadir
55 cm GSD at 20° off-nadirDynamic Range 11-bits per pixel Swath Width 17.7 km at nadir Attitude Determination and Control 3-axis stabilized
Actuators: Control Moment Gyros (CMGs)
Sensors: Star trackers, solid state IRU, GPSPointing Accuracy and Knowledge Accuracy: <500 m at image start and stop
Knowledge: Supports geolocation accuracy belowRetargeting Agility Time to Slew 200 km: 10 sec Onboard Storage 2199 Gb solid state with EDAC Communications Image and Ancillary Data: 800 Mbps X-band
Housekeeping: 4, 16 or 32 kbps real-time, 524 kbps stored, X-band
Command: 2 or 64 kbps S-bandMax Contiguous Area Collected in a Single Pass Mono: 111 x 112 km (6 strips) (30° off-nadir angle) Stereo: 51 x 112 km (3 pairs) Revisit Frequency 1.7 days at 1 m GSD or less (at 40°N Latitude) 5.4 days at 20° off-nadir or less (0.55 m GSD) Geolocation Accuracy (CE90) Demonstrated <4.0 m CE90 without ground control Capacity 1.3 million km2 per day The Ikonos satellite. Image courtesy of DigitalGlobe. DigitalGlobe Ikonos Specifications
Attribute Value Launch information Date: September 24, 1999
Launch vehicle: Athena 2
Launch site: Vandenberg Air Force Base, CaliforniaMission life 12+ years Spacecraft size 1.83 m × 1.57 m (hexagonal configuration) Spatial resolution Panchromatic: 0.82 m
Multispectral: 3.2 mPositional accuracy 15 meter CE90 (specification)
9 meter CE90 (measured)Swath width 11.3 km Off-nadir imaging Up to 60 degrees Dynamic range 11 bits per pixel Revisit time Approximately 3 days Orbital altitude 681 km Nodal crossing 10:30am Collection capacity 240,000 km2/day (Pan + MSI) The GeoEye-1 satellite. Image courtesy of DigitalGlobe. DigitalGlobe GeoEye-1 Specifications
Attribute Value Mission Life Expected >10 years Spacecraft Size 4186 lbs, 4.34 m in length Altitude 681 km Orbit Type: Sun-synchronous,
10:30 am descending node
Period: 98 minSensor Resolution and Spectral Bandwidth Panchromatic:
41 cm GSD at nadir
Black & White: 450 - 800 nm
Multispectral:
1.65 m GSD at nadir
Blue: 450 - 510 nm
Green: 510 - 580 nm
Red: 655 - 690 nm
Near-IR: 780 - 920 nmDynamic Range 11-bits per pixel Swath Width Nominal Swath Width:
15.3 km at nadirAttitude Determination and Control Type: 3-axis Stabilized
Star tracker/IRU/reaction wheels, GPSRetargeting Agility Time to slew 200 km: 20 sec Onboard Storage 1 Tbit capacity Communications Payload Data: X-band 740/150 Mbps AES/DES encryption >
Housekeeping: X-band 64 kbps AES encryptionRevisit Frequency
(at 40°N Latitude)2.6 days at 30° off-nadir Metric Accuracy 5 m CE90, 3 m CE90 (measured) Capacity 350,000 km2/day Multi-spectral IMAGE
The QuickBird satellite. Image courtesy of DigitalGlobe. DigitalGlobe QuickBird Specifications
Attribute Value Launch Information Date: October 18, 2001
Launch Vehicle: Delta II
Launch Site: SLC-2W, Vandenberg Air Force Base, CaliforniaMission Life Extended through early 2014 Spacecraft size 2400 lbs, 3.04 m (10 ft) in length Model Altitude 400 km Altitude 450 km Orbit Type: Sun Synchronous, 10:00 am descending node
Period: 92.4 min.10:25 am descending node
Period: 93.6 minSensor Resolution and spectral bandwidth Panchromatic:
55 cm GSD at nadir
Black & White: 405 - 1053 nm
Multispectral:
2.16 m GSD at nadir
Blue: 430 – 545 nm
Green: 466 – 620 nm
Red: 590 – 710 nm
Near-IR: 715 – 918 nmPanchromatic
61 cm GSD at nadir
Multispectral:
2.44 m GSD at nadirDynamic range 11 bits per pixel 11 bits per pixel Swath width Nominal Swath Width:
14.9 km at nadirNominal swath width:
16.8 km at nadirAttitude determination and control Type: 3-axis Stabilized
Star tracker/IRU/reaction wheels, GPSType: 3-axis Stabilized
Star tracker/IRU/reaction wheels, GPSRetargeting agility Time to slew 200 km: 37 sec 38 sec Onboard Storage 128 Gb capacity 128 Gb capacity Communications Payload Data: 320 Mbps X-band
Housekeeping: X-band from 4, 16 and 256 Kbps, 2 Kbps S-band uplinkPayload Data: 320 Mbps X-band
Housekeeping: X-band from 4, 16 and 256 Kbps, 2 Kbps S-band uplinkRevisit Frequency (at 40oN Latitude) Revisit time may vary from 2 to 12 days depending on target location as the orbit decays. Revisit time may vary from 2 to 12 days depending on target location as the orbit decays. Metric accuracy 23 m CE90, 17 m LE90 (without ground control) 23 m CE90, 17 m LE90 (without ground control) Capacity 200,000 sq km per day 200,000 sq km per day - Teledyne Brown Engineering
-
The DESIS satellite. DESIS Performance Specifications
Parameter DESIS values (Commissioning Phase) Orbit (type, local time at equator, inclination, altitude, period, repeat cycle) not Sun-synchronous, various, 51.6°, 405 ± 5 km, 93 min, no repeat cycle Coverage 55° N to 52° S Tilt (across-track, along-track) -45° to +5°, -40° to +40° by MUSES and DESIS Sensor pointing ±15° along-track to enable BRDF or Stereo acquisitions Spectral coverage 402 nm to 1000 nm Number of spectral channels 235 (no binning) ~2.5nm
118 (binning 2)
79 (binning 3)
60 (binning 4) ~10nm, this product will be available June 2019Defective spectral channels (see footnote 2 below for description and location) Bands 1 – 7 (no binning)
Bands 1 – 4 (binning 2)
Bands 1 – 3 (binning 3)
Bands 1 – 2 (binning 4)Spectral sampling resolution 2.55 nm (w/o binning); ~10.2 nm (binning 4) Full Width Half Maximum (FWHM) ~3.5 nm (w/o binning); ~10.0 nm (binning 4) Radiometric resolution 12 bits + 1 bit gain Radiometric accuracy +/-10% (based on on-ground calibration and with the support of inflight radiometric calibration) Radiometric linearity 99% Swath 30 km Spatial resolution, pixels 30 m, 1024 pixels (@400 km) Geometric accuracy ~20 m with GCPs1
~300 m - 400 m w/o GCPsMTF @ Nyquist 30%-40% based on on-ground calibration / static MTF without smearing effects / wavelength depending Signal-to-Noise ratio (albedo 0.3 @ 550 nm) 195 (w/o binning)
386 (4 binning)
(based on on-ground calibration)Dark/Read noise (electrons) 30-60e- (global shutter)
15-30e- (rolling shutter)Quantum scale equivalent (e-/DN) 0.04 e-/DN Max frame rate 235Hz (@235 spectral lines, rolling shutter)
117Hz (@235 spectral lines, global shutter)Solar zenith angle restrictions
(for L2A level processing)> 55° produces reduced quality L2A product
> 65° produces low quality L2A product
> 70° not processable to L2A1 with respect to global reference Landsat ETM+ PAN with GSD 14 m.