Second Generation Star Tracker (ST-16RT2)
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Contact // + 1 (714) 465 5737 | [email protected] Absolute Accuracy 5 arcsecond cross-boresight (RMS) 55 arcsecond around boresight (RMS) (Demonstrated on-orbit, including thermal effects) Maximum slew rate 3°/second Lens Full-custom 16 mm f/1.6 4-element glass, designed for shock and vacuum Detector 2592 x 1944 CMOS active-pixel sensor, ~3 e- system noise Output Solution Provides attitude quaternion and angular rates at 2 Hz Zero initial acquisition time Processing Full lost-in-space solution each frame Processor and star catalog built into unit Internal corrections for proper motion and stellar aberration Command / Telemetry Two half-duplex RS-485, ±70 V fault tolerant Can share data link with Sinclair Interplanetary by Rocket Lab reaction wheels Supply Voltage 9 V to 34 V, redundant pins, reverse polarity protected Power Consumption Average: < 0.5 W | Peak: 1.0 W Environment Thermal: −40ºC to +50ºC (operating), −40ºC to +95ºC (survival), Vibration: > 29.6 gRMS vibration Shock: 2000 G Lifetime: 13 years LEO (800 km) or 9 years GEO Heritage 13 first generation units on-orbit, first launch November 2013 40 second generation units on-orbit, first launch June 2016 specifications Second Generation Star Tracker (ST-16RT2)
Transcript of Second Generation Star Tracker (ST-16RT2)
Contact // + 1 (714) 465 5737 | [email protected]
Absolute Accuracy 5 arcsecond cross-boresight (RMS) 55 arcsecond around boresight (RMS) (Demonstratedon-orbit,includingthermaleffects)
Maximum slew rate 3°/second
Lens Full-custom 16 mm f/1.6 4-element glass, designed for shock and vacuum
Detector 2592x1944CMOSactive-pixelsensor,~3e-systemnoise
Output Solution Provides attitude quaternion and angular rates at 2 Hz Zero initial acquisition time
Processing Full lost-in-space solution each frame Processor and star catalog built into unit Internal corrections for proper motion and stellar aberration
Command / Telemetry Two half-duplex RS-485, ±70 V fault tolerant Can share data link with Sinclair Interplanetary by Rocket Lab reaction wheels
Supply Voltage 9Vto34V,redundantpins,reversepolarityprotected
Power Consumption Average: < 0.5 W | Peak: 1.0 W
Environment Thermal: −40ºCto+50ºC(operating),−40ºCto+95ºC(survival), Vibration:>29.6gRMSvibrationShock:2000G Lifetime: 13yearsLEO(800km)or9yearsGEO
Heritage 13firstgenerationunitson-orbit,firstlaunchNovember2013 40secondgenerationunitson-orbit,firstlaunchJune2016
specifications
Second Generation Star Tracker (ST-16RT2)
Contact // + 1 (714) 465 5737 | [email protected]
Integration and Test Support Third-party optical stimulators available for realtime hardware-in-the-loop testing. Ask for pricing.
Field of View 7.5°x10°half-angle 8°half-angle 7.5°x10°half-angle
Sun-Avoidance N/A 34°sun-to-boresight 22°sun-to-boresight
Moon-Avoidance DemonstratedorbitaloperationwithfullmooninFOV
Dimensions 62x56x38mm 62x56x68mm 99Øx120mm
Total Mass 158 g 185 g 235 g
Heritage 30 units on-orbit 13 units on-orbit 10 units on-orbit
Price US$120,000 each US$140,000 each US$140,000 each
BAFFLE OPTIONS NO BAFFLE SHORT BAFFLE LARGE BAFFLE
Second Generation Star Tracker (ST-16RT2)
Contact // + 1 (714) 465 5737 | [email protected]
Not all combinations mutually possible. Please consult factory for full selection.
Understanding Star Tracker Part Numbers
ST-16RT2-28-RS485-2-1
16RT2:radiationshielding housing, 16 mm focal length 2nd generation lens
Supply Voltage28:9Vto34V
CommunicationsRS485 (RS422)
CAN
Radiation tolerance0:Standardparts
1:Lotscreenedparts2:Rad-hardparts
Baffle0:Nobaffle
1:Smallrigidbaffle2:Largerigidbaffle
3:Passivedeployedbaffle4:Activedeployedbaffle
