The ST-16HV from Rocket Lab is a Star Tracker with an absolute accuracy of 10-100 arcsec with a maximum slew rate of 2 deg/sec. This star tracker has an angular rates at 2 Hz with zero initial acquisition time and has a 2592 x 1944 CMOS active-pixel sensor. It requires a DC supply of 9-34 V and has a power consumption of up to 1 W. This star tracker supports two half-duplex RS-485 interfaces with a commercial grade 16 mm f/1.8 lens. It has a mass of 148 g and measures 62 x 56 x 38 mm.