DESTINY+ Instruments: TCAP

Overview

TCAP is a telescopic panchromatic camera having a rotational mirror for asteroid tracking during flyby. It consists of two components: the TCAP-E, an electronic board that controls the camera system, and the TCAP-OH, which comprises the optical system including the tracking mirror and CMOS sensor.

Figure: TCAP-OH 3D-CAD

Figure: TCAP-E 3D-CAD

Instrument Specifications

TCAP Specifications

Property	Value	Comments
Aperture	114 mm	blocked by a φ49.16 mm secondary mirror
Focal length	787.7 mm
FOV	0.81 deg × 0.81 deg
Pixels per image	2048 × 2048 pixels
Pixel size	5.5 µm × 5.5 µm
Pixel FOV	7 µmrad/pixel
Spatial resolution	Ensquared energy (2×2 pixels) ≧0.52
Max. imaging rate	1 fps for full image
Asteroid tracking	Yes
Mass	11.17 kg	TCAP OH 10.0 kg，TCAP E 1.17 kg
Volume TCAP-OH TCAP-E	D250 mm × W600 mm × H270 mm D120mm × W220 mm × H63.2 mm

Data in situ

Not yet available