Washington: The Pentagon is looking for cheap commercial satellites that can maintain surveillance on other satellites in orbit, including close-range inspections, according to a Defence Innovation Unit solicitation.
The Geosynchronous High-Resolution Optical Space-Based Tactical Reconnaissance project — also referred to as “Ghost Recon” (as in the Tom Clancy novels and video games) — is intended to address a vulnerability in America’s space-monitoring capabilities.
The problem is that DOD “lacks sufficient satellites capable of providing high-resolution space-to-space imagery and maintaining custody of both friendly and adversarial satellites in geosynchronous orbit (GEO),” according to the solicitation.
Hence, the Pentagon is looking for commercial satellites that can be launched within two years after the contract begins. Within three years, those satellites would become government owned and operated. Within four years, they will have to demonstrate the ability to “perform at least one drive-by (Sub or Super Sync) or an inclined track design reference mission (DRM) per week through the first year of government operations,” the solicitation states.
The goal is relatively inexpensive and scalable designs, including space vehicles, satellite buses and payloads that offer “high-resolution space-to-space imagery and accurate object characterisation,” DIU said.
“These systems must reduce costs compared to existing and planned programmes of record while achieving high-resolution image collection, allowing for increased collection frequency and detailed characterisation of resident space objects (RSOs) in GEO. The successful deployment of these capabilities will significantly improve GEO RSO Characterisation, Battle Damage Assessment (BDA), Positive Identification (PID), and Combat Identification (CID),” the solicitation notes.
DIU envisions a spacecraft that can move close to other satellites. The result would be “fully resolved imagery of an ESPA Grande-sized spacecraft and its key subsystems (i.e. star tracker, communications payload, mission payload) from a distance of no closer than 10 kilometres,” according to the solicitation. Ghost Recon satellites would also need to manoeuvre above or below GEO altitude to maximise solar lighting of the target.
Interestingly, DIU suggests satellites from other nations may be less than cooperative when it comes to having their picture taken, such as moving away from American space vehicles. The solicitation cites the possibility of using “several [space vehicles] to support collection of tasked RSO, [which are] used to support collection for uncooperative RSOs.”
While Ghost Recon satellites would mainly track space objects that have already been detected, they may have to search for targets themselves, including “detection and localisation of untracked or non-cooperative RSOs,” according to the solicitation.
Contractors are asked to detail the capabilities of their designs, including the cost for a Ghost Recon satellite to revisit another space object every 30 days for 10 years. Companies must also specify slew rate, mission payload angular resolution and modular transfer function.
Minimum requirements include the ability to “successfully perform rendezvous and proximity operations,” according to the solicitation. Satellites must also be capable of operating for at least three years in GEO, meet National Security Space Launch medium and large standards for launch integration, and use Unified S-Band protocols.
Though DIU wants affordable spacecraft that can be deployed within two years, the solution mentions the possibility of refuelling these platforms “to extend spacecraft lifespan, increase manoeuvrability for follow-on missions, and reduce replacement cadence.”
The project deadline is March 3.
