HDTV CAMERA UTILIZING THE SERVICE MODULE INTERNATIONAL SPACE STATION (HDTV IN
SM)
Research Area: Imaging Technology
Expeditions(s): 3 and 4
Principle Investigator(s): ● Teruhiko Tabuchi, Japan Aerospace Exploration Agency,
Tsukuba, Japan
RESEARCH OBJECTIVES
HDTV Camera Utilizing the Service Module International Space Station (HDTV in SM) evaluates
the influence of damage by the space radiation to the image sensors in the camera and also by
the image sensor samples in the International Space Station (ISS). Image sensor samples are
returned to the ground and analyzed for the relation between space radiation and the damage
(hot pixel) on the image sensors.
EARTH BENEFIT
New knowledge is expected to be the major benefit of this investigation.
SPACE BENEFIT
This new video recording technology can document future long-duration exploration missions.
HDTV can provide improved imagery for spacecraft surveys while inflight.
RESULTS
The HDTV in SM investigation showed that
the number of hot pixels (image data
caused by cosmic radiation hits) increases in
proportion to the quantity of radiation. It
was also observed that the number of hot
pixels increases in proportion to the storage
days in the ISS cabin. However, after the
camera was returned to the ground, it was
stored at room temperature, then the
damage on CCD were recovered, and the
hot pixels were shown to have decreased
(Nagamatsu 2011).
PUBLICATION(S)
Nagamatsu A, Murakami K, Yokota A, et al. Space radiation damage to HDTV camera CCDs
onboard the international space station. Radiation Measurements. February 2011;46(2):205-
- doi: 10.1016/j.radmeas.2010.11.016.
This investigation is complete and all results are published.
ISS003E5826 – Cosmonaut Vladimir N. Dezhurov,
Expedition 3 flight engineer representing Roscosmos,
works with camera equipment in the Zvezda Service
Module on the International Space Station. JAXA image.