Isar Aerospace Spectrum

Spectrum
Function	Orbital launch vehicle
Manufacturer	Isar Aerospace
Country of origin	Germany
Size
Height	28 m (92 ft)
Diameter	2 m (6 ft 7 in)
Stages	2
Capacity
Payload to LEO
Mass	1,000 kg (2,200 lb)
Payload to SSO
Mass	700 kg (1,500 lb)
Launch history
Status	In Development
Launch sites	Andøya Space; Guiana Space Centre;
First flight	H2 2023
First stage
Powered by	9 x Aquila
Propellant	Propane/LOX
Second stage
Powered by	1 x Aquila
Propellant	Propane/LOX

Spectrum is a two-stage orbital launch vehicle being developed by Isar Aerospace.^[1] As of March 2023 Isar Aerospace is planning to launch the first Spectrum rocket in the second half of 2023 from the Andøya Spaceport.^[2] Using the Spectrum rocket, Isar Aerospace is attempting to be the first European company to commercially launch a Small-lift launch vehicle to orbit.

Design

The first stage uses nine in-house developed and manufactured Aquila engines, while the second stage uses one Aquila engine.^[1] The Aquila engine uses liquid oxygen and propane. In March 2023 Isar Aerospace reported having run 124 hotfires of the Aquila engine in the prior year, with testing taking place in Esrange, Sweden.^[3]

Launch sites

Map of orbital launch sites at the Guiana Space Center, with Spectrum launches being planned to take place at the former Diamant launch site.

A 20-year deal was signed by Isar Aerospace in April 2021 for exclusive access to one of the Andøya Space launch pads in Norway. Due to its location inclinations between 87.4 and 108 degrees can be reached from this launch site, targeting Sun-synchronous and polar orbits.^[4]

In July 2022 Isar Aerospace announced that it had been selected by CNES to conduct launch operations at the former Kourou Diamant Launch Site at the Guiana Space Centre, last used for an orbital launch in 1975.The first launch is scheduled to take place from this launch site in 2024. Due to the low latitude of this launch site, it can be used for equatorial and medium inclined orbits.^[5]

Launches

In 2021 deals for launches on Spectrum were announced with Airbus Defence and Space,^[6] EnduroSat^[7] and Astrocast.^[8] A deal with Spaceflight, Inc. for a dedicated launch from Andøya in 2026 and option for a 2025 launch were announced in January 2023.^[9] As of March 2023, Isar Aerospace is targeting the second half of 2023 for Spectrums debut launch from Andøya.^[2]

References

1 2 "Spectrum". Isar Aerospace. Retrieved 5 April 2023.
1 2 Berger, Eric (28 March 2023). "A front-runner emerges in the European small launcher race". Ars Technica. Retrieved 5 April 2023.
↑ "Isar Aerospace unveils progress on Aquila engine development". Isar Aerospace. Retrieved 5 April 2023.
↑ "Launch site secured: Isar Aerospace signs exclusive launch pad in Norway for up to 20 years". Isar Aerospace. Retrieved 5 April 2023.
↑ "Isar Aerospace selected to be first privately-funded launch services company flying satellites from Guiana Space Centre". Isar Aerospace. Retrieved 5 April 2023.
↑ Holmes, Mark (22 April 2021). "Isar Aerospace Signs Launch Deal with Airbus Defence and Space". ViaSatellite. Retrieved 5 April 2023.
↑ Jewett, Rachel (25 October 2021). "EnduroSat Signs Launch Contract With German Isar Aerospace". ViaSatellite. Retrieved 5 April 2023.
↑ Holmes, Mark (15 December 2021). "Astrocast Taps Isar Aerospace for Upcoming Launch". ViaSatellite. Retrieved 5 April 2023.
↑ Jewett, Rachel (26 January 2023). "Isar Aerospace Signs Rideshare Deal with Spaceflight, Works Toward First Flight". ViaSatellite. Retrieved 5 April 2023.

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[spectrumdata-1] 1 2 "Spectrum". Isar Aerospace. Retrieved 5 April 2023.

[ars280323-2] 1 2 Berger, Eric (28 March 2023). "A front-runner emerges in the European small launcher race". Ars Technica. Retrieved 5 April 2023.

[3] "Isar Aerospace unveils progress on Aquila engine development". Isar Aerospace. Retrieved 5 April 2023.

[4] "Launch site secured: Isar Aerospace signs exclusive launch pad in Norway for up to 20 years". Isar Aerospace. Retrieved 5 April 2023.

[5] "Isar Aerospace selected to be first privately-funded launch services company flying satellites from Guiana Space Centre". Isar Aerospace. Retrieved 5 April 2023.

[6] Holmes, Mark (22 April 2021). "Isar Aerospace Signs Launch Deal with Airbus Defence and Space". ViaSatellite. Retrieved 5 April 2023.

[7] Jewett, Rachel (25 October 2021). "EnduroSat Signs Launch Contract With German Isar Aerospace". ViaSatellite. Retrieved 5 April 2023.

[8] Holmes, Mark (15 December 2021). "Astrocast Taps Isar Aerospace for Upcoming Launch". ViaSatellite. Retrieved 5 April 2023.

[9] Jewett, Rachel (26 January 2023). "Isar Aerospace Signs Rideshare Deal with Spaceflight, Works Toward First Flight". ViaSatellite. Retrieved 5 April 2023.

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European orbital launch systems
Active	Vega
In development	Ariane 6 Ariane Next Bloostar Haas 2b Haas 2CA Miura 5 North Star RFA One Skylon Spectrum
Retired	Ariane 1 2 3 4 5 Black Arrow Diamant Europa
Cancelled	Aldebaran Ariane 5 ME Ariane M Capricornio Haas Hopper HOTOL Hyperion SSTO Liberty Liquid Fly-back Booster Derivatives BAC Mustard OTRAG SOAR

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 Epsilon Falcon 9 Block 5 Falcon Heavy Firefly Alpha Gravity-1 GSLV H-IIA H3^† Hyperbola-1 Jielong 1 3 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 Eris Gravity-2 Hyperbola-2 Irtysh Kuaizhou 21 31 Long March 9 10 Miura 5 MLV Neutron New Glenn New Line 1 OS-M 2 4 Orbex Prime Pallas-1 Qaem-100 Red Dwarf SLS Block 1B Block 2 Soyuz-7 Terran R 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 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)