BOKZ Star Trackers

Function

Instruments of the BOKZ family have been designed for precise determination of the parameters for three-axial spacecraft attitude in real time using images of arbitrary starry sky segments.

Description

Star tracker BOKZ is a monoblock including a digital TV-camera with a CCD-array and a power signal processor.

Within the period 1999–2005 thirteen instruments of the BOKZ family were delivered to near Earth orbits onboard Russian spacecraft.

The BOKZ instrument set has been widened with 3 new modifications — BOKZ-M, BOKZ-M24 and BOKZ-2M. The next generation instruments — BOKZ-MF and BOKZ-3 — are being created.

In future we plan creation of a self-sufficient instrument for direct control of the SC angular motion parameters without gyro inertial system support.

Main characteristics

 

Modification

 

BOKZ

BOKZ-M

BOKZ-M24

BOKZ-2M

BOKZ-MF

Mass, kg

4,5

4,0

3,2

2,0

1,5

SÑ admissible angular velocity, deg./s

0,2

0,2

1,5

2,0

2,0

Data update frequency, Hz

0,3

0,3

0,3

1,0

1,0

Accuracy, arcsec (sx,y/sz)

2 / 20

2 / 20

5 / 12

5 / 12

5 / 12



Contacts

Optico-physical department +7(495)333-22-45, lkrasnop@ofo.iki.rssi.ru