OPTSAT-3000
{{short description|Italian Earth-observation and reconnaissance satellite}}
{{Infobox spaceflight
| name = OPTSAT-3000
| names_list = SHALOM
| image = Décollage VV10.jpg
| image_caption = Launch of OPTSAT-3000 on board Vega flight VV10
| mission_type = Reconnaissance
| operator = Ministry of Defence
| COSPAR_ID = 2017-044A{{Cite web|title=OPTSAT-3000|url=https://space.skyrocket.de/doc_sdat/optsat-3000.htm|access-date=2021-12-09|website=Gunter's Space Page|language=en}}
| mission_duration = >7 years (planned)
{{time interval|2 July 2017}} (elapsed)
| website = [https://www.iai.co.il/p/optsat-3000 OPTSAT-3000]
| spacecraft_bus = TecSAR{{Cite web|title=OPTSAT-3000 – Vega VV10 {{!}} Spaceflight101|url=https://spaceflight101.com/vega-vv10/optsat-3000/|access-date=2021-12-09|language=en-US}}
| manufacturer = Israel Aerospace Industries
| launch_mass = {{cvt|368|kg}}
| dimensions = {{cvt|4.58|xx|3.35|xx|1.20|m}} (incl. solar arrays)
| power =
| launch_date = {{start date|2017|08|2}}
| launch_rocket = Vega
| launch_site = Guiana Space Centre ELA-1
| launch_contractor = Arianespace
| orbit_reference =Geocentric
| orbit_regime = Sun-synchronous
| orbit_semimajor = {{cvt|6858|km}}
| orbit_periapsis = {{cvt|474.1|km}}
| orbit_apoapsis = {{cvt|501.8|km}}
| orbit_inclination = 97.2°
| orbit_period = 94.2 minutes
}}
OPTSAT-3000 (OPTical SATellite-3000{{Cite web|title=OptSat-3000 - Satellite Missions - eoPortal Directory|url=https://directory.eoportal.org/web/eoportal/satellite-missions/o/optsat-3000|access-date=2021-12-09|website=directory.eoportal.org}}) is an Italian Earth observation and reconnaissance satellite developed and built by Israel Aerospace Industries and operated by the Italian Ministry of Defence. Launched on August 2, 2017, it has an expected service life of at least 7 years. It is based on the design of the TecSAR-1 satellite.
Design
= Satellite bus =
OPTSAT-3000 is based upon the bus of the Israeli reconnaissance satellite TecSAR-1, but is modified for optical instruments. It has a launch mass of {{cvt|368|kg}} and dimensions of {{cvt|4.58|xx|3.35|xx|1.20|m}} when its two solar arrays are deployed.
= Imaging system =
OPTSAT-3000 has a high-resolution optical imaging system known as Jupiter, which is able to deliver panchromatic images with a resolution of {{cvt|0.5|m}} while operating the multispectral channel at the same time. These imaging detectors, combined with a {{cvt|70|cm}} telescope from an altitude of almost {{cvt|600|km}}, allows OPTSAT-3000 to cover a ground track {{cvt|15|km}} wide.
Launch
{{main article|Vega flight VV10}}
OPTSAT-3000 launched from Guiana Space Centre ELV, French Guiana, on board a Vega rocket. It was launched to a Sun-synchronous low Earth orbit with an apoapsis of {{cvt|501.8|km}}, a periapsis of {{cvt|474.1|km}} and an inclination of 97.2°, allowing it to cover much of the world.{{Cite web|title=Vega Rocket Successfully Lifts Israeli-Built Earth-Watching Satellites for Science & Reconnaissance – Vega VV10 {{!}} Spaceflight101|url=https://spaceflight101.com/vega-vv10/vega-vv10-launch-success-with-two-satellites/|access-date=2021-12-09|language=en-US}}