# Spectrum

> two-stage small launch vehicle by Isar Aerospace

**Wikidata**: [Q65245255](https://www.wikidata.org/wiki/Q65245255)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Spectrum_(rocket))  
**Source**: https://4ort.xyz/entity/spectrum

## Summary
Spectrum is a two‑stage small-lift orbital launch vehicle developed and manufactured by German company Isar Aerospace. It is 28 metres tall, 2 metres in diameter, and is designed to deliver small satellites to low Earth orbit and sun‑synchronous orbit using propane fuel and liquid oxygen as oxidizer.

## Key Facts
- Spectrum is a two-stage small‑lift launch vehicle (two‑stage‑to‑orbit) designed and manufactured by Isar Aerospace.  
- Country of origin: Germany.  
- Height: 28 metres.  
- Diameter: 2 metres.  
- Payload capacity: 1,000 kg to low Earth orbit (LEO).  
- Payload capacity: 700 kg to sun‑synchronous orbit (SSO).  
- Propulsion propellants: propane (propellant) and liquid oxygen (oxidizing agent).  
- First flight scheduled as a test flight on 2025-03-30 at 10:30 UTC from Andøya Space Orbital Launch Pad.  
- Service entry year: 2025.  
- Common aliases: Isar Aerospace Spectrum; Wikipedia title: "Spectrum (rocket)".

## FAQs
### Q: What is the payload capacity of Spectrum?
A: Spectrum is designed to carry up to 1,000 kg to low Earth orbit and up to 700 kg to sun‑synchronous orbit.

### Q: When and where is Spectrum’s first flight?
A: The first flight is scheduled as a test flight on 30 March 2025 at 10:30 UTC from the Andøya Space Orbital Launch Pad.

### Q: Who designs and manufactures Spectrum?
A: Spectrum is designed and manufactured by Isar Aerospace, a German launch vehicle company.

### Q: What propellants does Spectrum use?
A: Spectrum uses propane as its propellant and liquid oxygen as its oxidizer.

## Why It Matters
Spectrum addresses the growing market need for dedicated small‑satellite launches. As a small‑lift, two‑stage vehicle it targets operators that require tailored access to low Earth orbit and sun‑synchronous orbit without relying on larger rideshare missions. Its 1,000 kg LEO and 700 kg SSO capacities position it to serve commercial, institutional, and scientific small‑sat payloads. The use of propane and liquid oxygen enables a specific engine and propulsion design choice that differentiates it from vehicles using other propellant combinations. Manufactured by a German company, Spectrum adds capability and commercial competition from Europe in the small‑launch segment. A scheduled service entry in 2025 and a planned test flight on 30 March 2025 mark its transition from development to operational testing, which could expand launch options for customers seeking timely and dedicated orbital access.

## Notable For
- Being a two‑stage, small‑lift orbital launch vehicle developed and manufactured by Isar Aerospace.  
- Designed dimensions: 28 metres tall and 2 metres in diameter.  
- Propulsion choice of propane as propellant with liquid oxygen as oxidizer.  
- Payload performance: 1,000 kg to LEO and 700 kg to SSO.  
- First test flight scheduled for 2025-03-30 from Andøya Space Orbital Launch Pad.

## Body

### Overview
- Spectrum is an orbital launch vehicle model.  
- It is classed as a small‑lift launch vehicle and as two‑stage‑to‑orbit.  
- The vehicle is developed and produced by Isar Aerospace.  
- Country of origin is Germany.

### Design & Dimensions
- Overall height: 28 metres.  
- Diameter: 2 metres.  
- Two stages comprise the vehicle architecture.

### Propulsion & Fuels
- Primary propellant: propane.  
- Oxidizer: liquid oxygen.  
- Propellant/oxidizer pairing used for the vehicle’s propulsion system.

### Performance & Payload
- Designed payload mass to low Earth orbit: 1,000 kilograms.  
- Designed payload mass to sun‑synchronous orbit: 700 kilograms.

### Development & Flight History (scheduled)
- First flight is scheduled as a test flight on 30 March 2025.  
- Launch time for the scheduled first flight: 10:30 UTC.  
- Scheduled launch site for the first flight: Andøya Space Orbital Launch Pad.  
- Service entry year is listed as 2025.

### Manufacturer & Related Data
- Designed by: Isar Aerospace.  
- Manufacturer: Isar Aerospace.  
- Instance of: rocket model.  
- Subclass of: small‑lift launch vehicle; two‑stage‑to‑orbit.  
- Also referenced on Isar Aerospace’s Spectrum page (English).  
- Common alias: Isar Aerospace Spectrum.

## References

1. [Source](https://nextspaceflight.com/launches/details/5756)
2. Jonathan's Space Report
3. [Source](https://isaraerospace.com/spectrum)