HARDWARE / PRODUCTUpdated 23 Jul 2026

Photon Spacecraft Bus Platform

Rocket Lab - Photon

Rocket Lab's versatile small spacecraft bus family covering LEO, re-entry, and deep-space missions in four variants (Standard, Lightning, Pioneer, Explorer) with integrated Electron launch.

Key figurescomparable across the catalogue

Mass
50 kg
Payload capacity
170 kg
Power
3,000 W
Design life
12 years
TRL
9

Normalised to common units so this product can be compared with others in its category. The supplier's own wording is below.

As published by the supplier

Variants
Standard (LEO), Lightning (constellation), Pioneer (re-entry), Explorer (deep space)
Launch mass (Standard)
50 kg
Payload capacity (Standard)
170 kg to 37-deg LEO; 130 kg to SSO
Payload capacity (Pioneer)
up to 120 kg
Power (Lightning)
3 kW to payload
Propulsion (Standard/Pioneer)
Curie engine (monopropellant or bipropellant)
Propulsion (Explorer)
HyperCurie engine (high delta-V, interplanetary capable)
Design life (Lightning)
12+ years LEO
Communications
S-band
Flight heritage
CAPSTONE lunar (2022), Varda Pioneer re-entry (2023), multiple LEO missions
TRL
9 (Standard, Explorer, Pioneer flight-proven)

About

Photon is Rocket Lab’s family of small spacecraft buses that evolved from the Electron Kick Stage into a full satellite platform offering integrated propulsion, power, communications, and attitude control for customer payloads. The platform is offered in four mission-tailored variants. Standard Photon is the baseline LEO bus carrying up to 170 kg to a 37-degree inclination orbit or 130 kg to sun-synchronous orbit, powered by the Curie engine. Explorer is the high-energy deep-space variant driven by the HyperCurie engine; it successfully delivered NASA’s CAPSTONE CubeSat to a Near-Rectilinear Halo Orbit around the Moon in 2022 and is manifested for a Venus flyby mission. Pioneer is Rocket Lab’s re-entry and dynamic-operations bus, first flown in 2023 on Varda Space Industries’ in-space pharmaceutical manufacturing mission with successful capsule recovery; it carries up to 120 kg payload. Lightning is a high-power LEO constellation bus delivering 3 kW to payload, designed for 12-plus years operational life in high-duty-cycle telecom and remote sensing constellations; it is contracted for Globalstar (17 spacecraft) and Space Development Agency missions. All variants benefit from Rocket Lab’s integrated launch-plus-spacecraft offering on Electron from launch sites in New Zealand and Virginia.

Documentation

No public datasheet yet — request the datasheet / ICD from the supplier.

Source: www.rocketlabcorp.com ↗