Aleph-1

Aleph-1

The Aleph-1 constellation is operated by Satellogic, a European Space Imaging partner. There are 13 ÑuSats that comprise the Aleph-1 constellation that enable quick revisit times and large daily imaging capacity.  The beta ÑuSats (BugSats) were launched in 2013 with operational Aleph-1 satellites subsequently launching in 2016. The satellites are in a Sun Synchronous Orbit with a 97.5 degree inclination.

With a full fleet, the constellation will provide an hourly revisit time; there is potential for a 300 satellite fleet capable of providing 15-minute revisit time. The massive fleet will deliver sub-meter MS and 25 m HS imagery. MS has 4 bands, while HS has 29; both have the option for value-added layers, are GIS ready and have sensor, geometric, radiometric, and atmospheric corrections.

The Aleph-1 constellation is the perfect balance of frequency and data quality while maintaining a cost competitive value for the user. The data can be applied in large scale mapping with a rapid response, maritime monitoring, daily change detection, precision farming and/or mineral exploration, railroad and utilities monitoring.

Specification

Spatial resolution (GSD)

Multispectral images: 0.99 m GSD
Hyperspectral images: 25.0 m GSD

Spectral bands

Multispectral Hyperspectral
Band 1 Blue: 450-510 nm 462 nm (FWHM)
Band 2 Green: 510-580 nm 475 nm (FWHM)
Band 3 Red: 590-690 nm 488 nm (FWHM)
Band 4 Near-IR: 750-900 nm 502 nm (FWHM)
Band 5 - 516 nm (FWHM)
Band 6 - 529 nm (FWHM)
Band 7 - 550 nm (FWHM)
Band 8 - 569 nm (FWHM)
Band 9 - 582 nm (FWHM)
Band 10 - 595 nm (FWHM)
Band 11 - 608 nm (FWHM)
Band 12 - 616 nm (FWHM)
Band 13 - 670 nm (FWHM)
Band 14 - 680 nm (FWHM)
Band 15 - 689 nm (FWHM)
Band 16 - 701 nm (FWHM)
Band 17 - 710 nm (FWHM)
Band 18 - 720 nm (FWHM)
Band 19 - 730 nm (FWHM)
Band 20 - 740 nm (FWHM)
Band 21 - 750 nm (FWHM)
Band 22 - 760 nm (FWHM)
Band 23 - 770 nm (FWHM)
Band 24 - 781 nm (FWHM)
Band 25 - 790 nm (FWHM)
Band 26 - 800 nm (FWHM)
Band 27 - 810 nm (FWHM)
Band 28 - 821 nm (FWHM)
Band 29 - 827 nm (FWHM)

Revisit frequency

4x Daily (by Jan. 2021)

Swath

Multispectral images: 5 km

Hyperspectral images: 125 km

Radiometric resolution

8 or 16 bits per pixel

Webpage:

https://www.satellogic.com/

Contact

satelitarne@progea4d.pl
tel. +48 12 415 06 41

Aleph-1 and Sentinel-2 side-by-side comparison (2021-03-08)
Aleph-1 (1 m GSD) and Sentinel-2 (10 m GSD) RGB image comparison over France.
Satellite image at 70 cm resolution of the Evergreen container ship on the Suez Canal, Egypt. 25/03/2021 by NewSat-16. Supplied by European Space Imaging © 2021 Satellogic
Multispectral Aleph-1, Cropland NDVI, France
1 m GSD, NDVI over French croplands
Multispectral Aleph-1, Cropland CIR, France
1 m GSD, CIR over French croplands
Hyperspectral RGB Aleph-1, Modesto, CA
25 m GSD, RGB image over cropland in Modesto, California.
Hyperspectral CIR Aleph-1, Modesto, CA
25 m GSD, CIR image over cropland in Modesto, California.
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