ESPAStar
Northrop Grumman Space Systems
The ESPAStar platform is a modular and cost-effective spacecraft bus that utilizes a customized EELV Secondary Payload Adapter (ESPA) ring to host technology development and operational payloads.
Typed specifications54 values
Discloses 5 of 7 fields engineers filter by in this category (category median 3).
- Mass
- 600 kg product page 900 kg min | 1 920 kg max | 430–470 kg
- Envelope (L×W×H)
- 157.5 cm dia x 61 cm ht product page
- Data interface
- other AFSCN SGLS and USB · datasheet p.2
- Design lifetime
- 1 years ESPAStar-LT: ideally suited for missions with ~1 year duration · datasheet p.2 5 years min · ESPAStar-HP and ESPAStar-EP: supports > 5 year missions | 1–3 years ESPAStar-D and ESPAStar-SLV: ideally suited for 1-3 year miss…
- Form factor
- ESPA platform uses a customized EELV Secondary Payload Adapter (ES… · datasheet p.1
- Orbit
- GEO ESPAStar-D: GEO orbit baseline · datasheet p.2 other ESPAStar-D: GTO capable | LEO ESPAStar-D: LEO capable; ESPAStar-SLV: short duration mission… | MEO ESPAStar-D: MEO capable
- Max payload mass
- 600 kg ESPAStar-SLV · datasheet p.2 1 920 kg min · ESPAStar-D, > 1,920 kg | 1 920 kg min · ESPAStar-D, HP, LT, EP: > 1,920 kg | 1 920 kg min · ESPAStar-EP, > 1,920 kg | 1 920 kg min · ESPAStar-HP, > 1,920 kg +1
- Power available to payload
- 275 W ESPAStar-SLV, EOL OAP, 2 panel array · datasheet p.2 275 W ESPAStar-SLV: 275 W (EOL) OAP, 2 panel array | 800 W min · ESPAStar-D, > 800 W (EOL) OAP, 4 panel array | 800 W min · ESPAStar-D: > 800 W (EOL) OAP, 4 panel array | 4 000 W min · ESPAStar-EP, > 4 kW (EOL) OAP allocation from 6.8 kW UltraFle… +5
- Power generation (orbit average)
- 6 800 W ESPAStar-EP: UltraFlex-M BOL array power · datasheet p.2 6 800 W ESPAStar-HP: UltraFlex-M arrays (payload allocation > 4 kW EO…
- Propulsion
- included ESPAStar-D: propulsive ESPA satellite platform · datasheet p.2 included ESPAStar-EP: medium power electric propulsion module plus hyd… | included ESPAStar-HP, SLV, LT: ΔV stated (≥ 500, 235, ~400-800 m/sec)
- Delta-v
- 2 000 m/s ESPAStar-EP (electric propulsion) · datasheet p.2 235 m/s ESPAStar-SLV | 500 m/s min · ESPAStar-HP, ≥ 500 m/sec | 400–800 m/s ESPAStar-D | 400–800 m/s ESPAStar-LT, ~ 400-800 m/sec
- Subsystems included
- solar arrays D: 4 panel array; HP, EP: 6.8 kW UltraFlex-M arrays; SLV: 2 p… · datasheet p.2 propulsion D: propulsive ESPA; EP: electric propulsion module and hydrazine | propulsion propulsive ESPA platform; ESPAStar-EP electric propulsion mod…
- Rail standard
- ESPA datasheet p.1
- Payload mounting
- ESPAStar-D: six ESPA payload slots with standardized I/Fs for combinations of hosted or separable payloads; ESPAStar-HP: twelve ESPA payload slots with standardized I/Fs; ESPAStar-SLV: two ring ports and aft/fwd panel space for hosted and separable payloa datasheet p.2
- Deployables (as printed)
- UltraFlex-M arrays (HP, EP, 6.8 kW); 4 panel array (D); 2 panel array (SLV); fixed single panel solar array (LT) datasheet p.2
- Flight heritage
- EAGLE (ESPA Augmented Geostationary Laboratory Experiment) launched April 2018, successful demonstration; LDPE-1 (Long Duration Propulsive ESPA) launched December 2021, successful operations on orbit; ESPAStar-1 launched June 2022, successful operations o datasheet p.1 Launched April 2018 EAGLE (ESPA AUGMENTED GEOSTATIONARY LABORATORY EXPERIMENT) | flight-proven ESPAStar | Launched June 2022 ESPAStar-1 | Launch December 2021 LDPE-1 (LONG DURATION PROPULSIVE ESPA)
- Satellite class
- ESPA-class datasheet p.0
- Missions flown
- 10 CONTRACT BACKLOG FOR ESPAStar-D · datasheet p.0 1 CONTRACT BACKLOG FOR ESPAStar-HP
Each value is typed with its unit and measurement condition and cites the datasheet page it was taken from. Nothing is guessed: a field that is absent here has not been published by the manufacturer. machine-extracted ✓ checked by NewSpace Market ✓ manufacturer confirmed by the manufacturer.
As published by the supplier15 lines, in the manufacturer's own wording
- Espastar-d dry mass
- 430-470 kg
- Espastar-d dimensions
- 157.5 cm dia x 61 cm ht
- Espastar-d delta-v
- 400-800 m/sec
- Espastar-d payload mass
- >1,920 kg
- Espastar-hp dry mass
- <900 kg
- Espastar-hp fuel capacity
- 558 kg
- Espastar-hp mission duration
- 5-7 years
- Espastar-hp payload power
- 3 kW base, up to 4 kW
- Espastar-slv payload mass
- 600 kg
- Espastar-slv delta-v
- 235 m/sec
- Espastar-lt payload power
- >25 W (EOL), 1-2 panel trickle charge
- Espastar-ep delta-v
- 2,000 m/sec
- Espastar-ep solar array power
- 6.8 kW BOL (UltraFlex-M)
- Pointing control (D/HP/EP)
- <50 μrad (1σ)
- Payload ports
- Up to 6 hosted or 12 separable payloads
About
Northrop Grumman’s ESPAStar platform provides a modular, cost-effective, and highly capable infrastructure resource for hosting technology development and operational payloads. It uses a customized EELV Secondary Payload Adapter (ESPA) ring as part of its structure, allowing it to be launched aboard any launch vehicle that meets the Evolved Expendable Launch Vehicle (EELV) standard interface specification, including Falcon 9 and Falcon Heavy. The platform features six payload ports, capable of accommodating any combination of up to six hosted and 12 separable (fly-away) payloads, with a maximum of one hosted or two separable payloads per port. The standardized payload interface at each port allows for interchangeability between hosted and separable payloads, facilitating late payload integration and manifest changes. ESPAStar leverages the available mass margin from EELV launches to offer an affordable path to space for various payloads. While optimized for Geostationary Earth Orbit (GEO) missions, the platform is also adaptable for Low Earth Orbit (LEO) and Medium Earth Orbit (MEO) missions.
Documentation
- ESPAStar-Product-Line-Datasheet.pdf PDF source: cdn.northropgrumman.com ↗
- ESPAStar-D-Datasheet.pdf PDF source: www.northropgrumman.com ↗
- ESPAStar-HP-datasheet.pdf PDF source: cdn.northropgrumman.com ↗
- ESPAStar-datasheet.pdf PDF source: cdn.northropgrumman.com ↗
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