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Small Satellite Opportunities at Wallops Flight Facility. Dr. John Campbell Director, Wallops Flight Facility. The Small Satellite Paradox. Small satellites are not funded (nor built) because of a lack of affordable launch opportunities and
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Small Satellite Opportunities atWallops Flight Facility Dr. John Campbell Director, Wallops Flight Facility
The Small Satellite Paradox Small satellites are not funded (nor built) because of a lack of affordable launch opportunities and Affordable small satellite launch capabilities have been slow to emerge due to a limited market
Small Satellite Launch Enablers • Low-cost small launch vehicles • Inexpensive & responsive launch ranges • Ride sharing
Low-Cost Launch Vehicles • Get-Away Special & Hitchhiker once served as the premier means for orbiting small satellites • New small ELVs are moving to fill the void • Minotaur I, IV, & V • SpaceX Falcon 1 • Etc. • Essential characteristics of new vehicles • Simple pad infrastructure • Short time from arrival at range to launch • Much lower cost per pound than current vehicles • Streamlined range support requirements (e.g., data services, personnel accommodations)
Small Satellites to the Moon • Small ELVs (e.g., Minotaur V) launched from Wallops can transport 350-500 kg (payload is ~50%) to the Moon • Can provide low-cost options for Science and Exploration needs • Remote sensing orbiters • Impacters • Small landers • Communication & navigation orbiters
Small Satellite Launch Enablers • Low-cost small launch vehicles • Inexpensive & responsive launch ranges • Ride sharing
Mid-Atlantic Regional Spaceport (MARS) • MARS owns 2 launch complexes at Wallops • Used for Wallops small-to-medium class ELV missions • MARS is a VA & MD sponsored partnership with NASA chartered to pursue commercial aerospace opportunities at Wallops • Current agreements enable efficient work with Wallops, using multiple business models: • NASA support of MARS commercial launches • MARS support of NASA’s government launches
Wallops Operating Areas • Wallops operational areas offer nearly unlimited mission capabilities • Restricted NASA-controlled airspace encompasses Launch Range & Research Airport • NASA airspace provides direct access to Atlantic Ocean for hazardous mission operations • Wallops location & geography provides the most efficient access to desirable mid-inclination orbits of 38-60 degrees
Low-Cost Responsive Range Operations • Wallops Launch Range is “right-sized” for small spacecraft missions • Small spacecraft missions not competing against large ELVs or Shuttle • Staff & facilities sized for small orbital missions • Wallops has a history & reputation for supporting emerging, low-cost launch vehicles • Schedule flexibility allows for development mission complications • Safety & project support culture of assisting projects during development
Launch Site Integration Flow Spacecraft Plus Upper Stage Arrival ~L-30 days Pad ~L-14 days Launch! Range Control Center Lower Stages Arrival ~L-30 days Blockhouse 3
Small Satellite Launch Enablers • Low-cost small launch vehicles • Inexpensive & responsive launch ranges • Ride sharing
Ridesharing • Small ELVs are still larger than necessary for many small satellites • Multi-manifesting of small ELVs is critical to ensuring that “Micro-Explorer” spacecraft (50-200 lbs.) mature as a viable class of spacecraft • Wallops has developed the Multi-Payload Ejector as a key enabler to exploit small ELVs for spacecraft smaller than 1000 lbs.
Multi-Payload Ejector • MPE able to carry >800 lbs. of individual spacecraft • 1 primary (up to 200 lbs.) • 6 secondaries (up to 100 lbs. each) • 12 CubeSat tertiaries (up to 3 lbs. each) • Flexible • Configurable for any launch vehicle, as primary for smaller ELV & secondary for larger ELVs • Can be flown as 1, 2, or 3 segments allowing trade-offs on individual spacecraft masses/volume & orbital altitude • Low-cost & simple • Completes payload deployments within ½ orbit • Motorized spring deployments (no pyrotechnics) • Sounding rocket qualified timers • Single input from launch vehicle initiates all MPE events • Launch vehicle provides only necessary guidance/control • Rapid Integration
MPE Integration Flow Spacecraft I&T MPE Integration Vehicle Integration & Test . . . Spacecraft (S/C) Development & Test S/C Arrival @ Wallops MPE Integration with ELV S/C Receiving & Inspection S/C Integration with MPE T-4 weeks T-3 weeks T-2 weeks T-1 week Launch Day
Small Satellite Launch Costs by the PoundNot by the vehicle • Component Costs, w/o Spacecraft (Wallops Launch): • MPE (NASA): $1.5M • I&T (NASA): $300K • Range Services (NASA): $1.5M • Launch Vehicle $16M (assumes Minotaur I) TOTAL: $19.3M • Payload Capacity (MPE 3-stack configuration) • MPE Structure: ~300 lbs. • 1 primary spacecraft: 200 lbs. • 6 secondary spacecraft (100 lbs. each): 600 lbs. • 12 Cubesats (3 lbs. each) 36 lbs. Total Spacecraft mass for 19 spacecraft 836 lbs • Cost per payload mass • Minotaur I: $23K/payload lb. • Falcon I: $13.5K/payload lb.
Small Satellite Launch Enablers • Low-cost small launch vehicles • Inexpensive & responsive launch ranges • Ride sharing