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MAI-SS Miniature Star Tracker


Summary

The MAI-SS Space Sextant is a low-cost Star Tracker intended for CubeSat and SmallSat missions. The unit is completely self-contained and features 'Lost in Space' star identification. Just apply power and begin receiving quaternions accurate to about 5.7 arcseconds. The system has been extensively rate tested and shown to have 96.4% availability of solutions at rates in excess of 2°/sec. The electronics have been radiation tested to 75krad while an optional baffle provides 45° Sun rejection. The MAI-SS is available in either vertical or horizontal mounting. ​ Because this product was developed under NASA SBIR funding, U.S. Government customers may purchase this product on a non-competitive basis as follows: “In accordance the SBA Policy Directive Sec 4 (c) (2), any procurement by US Government Entities is an SBIR Phase III award that is derived from, extends, or completes efforts made under prior SBIR funding agreements and is authorized under 10 U.S.C. 2304(b)(2) or 41 U.S.C. 3303(b) with no further competition pursuant to FAR 6.302-5”.


Specs

attitude knowledge error5.7 arcsec
acquisition time0.105 s
tracking rate< 2 deg/s
update rate4 Hz
sun exclusion angle45 deg
operating temperaturemin: -40 C, max: 80 C
mass197 g
voltage5.0 V
power1.5 W
radiation tolerance75 krad
full datasheet

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Last updated: 2018-03-27