Shahab-4 (IRIS)
Function	Disputed
Manufacturer	Iran
[edit on Wikidata]

The Shahab-4 (Persian: شهاب ۴, meaning "Meteor-4") (a.k.a. IRIS) was an unbuilt Iranian rocket, derived from the Shahab-3 medium-range ballistic missile. According to Iran it was intended to be a space launch vehicle,^[1] after a slip by the Defense Minister in which he acknowledged it as a "more capable ballistic missile than the Shahab-3".^[2] According to Western observers, it was intended to be part of a nuclear-capable ballistic missile.^[3]

History

The IRIS/Shahab-4 project was initiated in 1988 but according to some sources, it never went beyond the drawing board. The design heritage of the IRIS was later incorporated into the Safir.^[4]

In 1997, an American satellite captured evidence of a Shahab-4 test facility in Parchin.^{[citation needed]}

In 1999, it was suspected that the Shahab-4 was largely derived from NPO Yuzhnoye's R-12 Dvina, which in its single-stage variant had a maximum range of 2,000km and a circle of equal probability of 2,400m.^[3] The dual-stage R-12 Dvina was capable to lift payloads into orbit.^{[citation needed]}

References

^ "Iran to Launch 2 More Research Rockets Before Placing Satellite into Orbit This Summer". Archived from the original on February 8, 2009.
^ U.S. Department of Defense (2001). Proliferation: Threat and Response (PDF). DIANE Publishing. p. 38. ISBN 1-4289-8085-7.
^ ^a ^b "Iran Missile Chronology" (PDF). Nuclear Threat Initiative. August 2011. Retrieved 30 June 2020.
^ Project IRIS b14643.de

Iranian space program

Organizations

Space centres

Satellites

Reconnaissance/Spy	Sina-1 Mesbah-1 Mesbah-2 Fajr Noor-1 Noor-2 Khayyam
Remote sensing	Zafar Rasad 1 Navid Pars-2 Masud-2 AmirKabir Toloo
Communication	Omid Nahid-1† Soraya

Launch vehicles

Spacecraft and capsules

Pishgam

Astronomical observatories

Primary spaceports

People

Scientists	Mohammad Ali Forghani

v t e Orbital launch systems
List of orbital launch systems Comparison of orbital launch systems
Current	Angara 1.2 A5 Atlas V Ceres 1 1S Chollima-1 Delta IV Heavy Electron Falcon 9 Block 5 Falcon Heavy Firefly Alpha Gravity-1 GSLV H-IIA H3 Hyperbola-1 Jielong 1 3 KAIROS^† Kaituozhe 2 Kinetica-1 Kuaizhou 1 1A 11 Long March 2C 2D 2F 3A 3B/E 3C 4B 4C 5 5B 6 6A 7 7A 8 11 11H LVM3 Minotaur I IV V C Nuri OS-M1^† Pegasus XL Proton-M PSLV Qaem 100 Qased RS1^† Shavit 2 Simorgh SLS Block 1 Soyuz-2 2.1a / STA 2.1b / STB 2-1v SSLV Starship Tianlong-2 Unha Vega original C Vulcan Centaur Zenit 3SL 3SLB 3F Zhuque 2
In development	Antares 330 Ariane 6 Bloostar Cyclone-4M Epsilon S Eris Gravity-2 Hyperbola-2 Irtysh Kuaizhou 21 31 Long March 9 10 12 Miura 5 MLV Neutron New Glenn New Line 1 NGLV OS-M 2 4 Orbex Prime Pallas-1 Red Dwarf SLS Block 1B Block 2 Soyuz-7 Terran R Tianlong-3 VLM Vega E Zero Zhuque 3 Zuljanah
Retired	Antares 110 120 130^† 230 230+ Ariane 1 2 3 4 5 ASLV Athena I II Atlas B D E/F G H I II III LV-3B SLV-3 Able^† Agena Centaur Black Arrow Conestoga^† Delta A B C D E G J L M N 0100 1000 2000 3000 4000 5000 II III IV Diamant Dnepr Energia Epsilon Europa I^† II^† Falcon 1 Falcon 9 v1.0 v1.1 v1.2 "Full Thrust" Feng Bao 1 GSLV Mk I H-I H-II H-IIB Juno I Juno II Kaituozhe-1 Kosmos original 1 2/2I 3 3M Lambda 4S LauncherOne Long March 1 1D^† 2A 2E 3 3B 4A Mu 4S 3C 3H 3S 3SII V N1^† N-I N-II Naro-1 Paektusan^† Pilot-2^† R-7 Luna Molniya M L Polyot Soyuz original FG L M U U2 Soyuz/Vostok Sputnik Voskhod Vostok L K 2 2M R-29 Shtil' Volna^† Rocket 3 Safir 1 1A 1B Saturn I IB V Scout X-1 Blue Scout II^† X-2^† X-2M X-3 X-3M X-4 X-2B^† B A B-1 D-1 A-1 E-1 F-1 G-1 Shavit original 1 SLV Space Shuttle SPARK^† Sparta SS-520 Start-1 Terran 1^† Thor Able Ablestar 1 2 Agena A B D Burner 1 2 Delta DSV-2U Thorad-Agena SLV-2G SLV-2H Titan II GLV IIIA IIIB IIIC IIID IIIE 34D 23G CT-3 IV Tsyklon R-36-O original 2 3 Universal Rocket UR-500 Proton Proton-K Rokot Strela Vanguard VLS-1^† Zenit 2 2M 2FG Zhuque 1^†
Classes	Sounding rocket Small-lift launch vehicle Medium-lift launch vehicle Heavy-lift launch vehicle Super heavy-lift launch vehicle
This Template lists historical, current, and future space rockets that at least once attempted (but not necessarily succeeded in) an orbital launch or that are planned to attempt such a launch in the future Symbol ^† indicates past or current rockets that attempted orbital launches but never succeeded (never did or has yet to perform a successful orbital launch)

History

See also

References