Ofeq

"Ofek" redirects here. For the bank, see Ofek (cooperative).
Ofeq

Ofeq 7 launch utilising the shavit vehicle
Manufacturer IAI
Country of origin  Israel
Operator Israeli Ministry of Defence
Specifications
Regime Low Earth
Production
Status Active
Built 10 known
Launched 10
First launch Ofeq 1, 1988-09-19
Last launch Ofek-10, 2014-04-10

Ofeq, also spelled Offek or Ofek (Hebrew: אופק, lit. Horizon) is the designation of a series of Israeli reconnaissance satellites first launched in 1988. Most Ofeq satellites have been carried on top of Shavit rockets from Palmachim Airbase in Israel, on the Mediterranean coast. The Low Earth Orbit satellites complete one earth orbit every 90 minutes. The satellite launches made Israel only the eighth nation to gain an indigenous launch capability. Both the satellites and the launchers were designed and manufactured by Israel Aerospace Industries (IAI) with Elbit Systems' El-Op division supplying the optical payload.

Description

While exact technical details and capabilities are classified, it is assumed that the Ofeq satellites have ultraviolet and visible imaging sensors, and an effective operational lifespan of 1–3 years. Some early reports stated the reconnaissance capabilities as such that would allow "reading license plates in Baghdad", but that can be ruled out on grounds of physical optics. Other reports more plausibly place the imaging resolution at 0.8 meters for Ofeq 5.

Most non-Israeli satellites are launched eastward to gain a boost from the Earth's rotational speed. However, Ofeq satellites are launched westward (retrograde orbit) over the Mediterranean to avoid flying over, and dropping spent rocket stages over, populated areas in Israel and neighboring Arab countries. Other Israeli satellites (such as the Amos series) are launched from locations in other countries.

Ofeq's east-to-west orbit of about 141 degrees orbital inclination[1] is phased to give good daylight coverage of the Middle East. Ofeq makes a half-dozen or so daylight passes per day over Israel and the surrounding countries, whereas U.S. and Russian spysats only get one or two passes per day from their higher inclination orbits.

Launch history

References

  1. 1 2 Stephen Clark (10 April 2014). "All-weather surveillance satellite put in orbit by Israel". Spaceflight Now. Retrieved 12 April 2014.
  2. Shavit Federation of American Scientists
  3. "Israel successfully launches Ofek 7 satellite". Israel Ministry of Foreign Affairs.
  4. 1 2 Opall-Rome, Barbara (22 June 2010). "Israel Launches Ofeq-9 Satellite". Defense News. Retrieved 22 June 2010.

External links

This article is issued from Wikipedia - version of the Sunday, January 04, 2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.