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Title: Monitoring objects orbiting earth using satellite-based telescopes

Patent ·
OSTI ID:1187956

An ephemeris refinement system includes satellites with imaging devices in earth orbit to make observations of space-based objects ("target objects") and a ground-based controller that controls the scheduling of the satellites to make the observations of the target objects and refines orbital models of the target objects. The ground-based controller determines when the target objects of interest will be near enough to a satellite for that satellite to collect an image of the target object based on an initial orbital model for the target objects. The ground-based controller directs the schedules to be uploaded to the satellites, and the satellites make observations as scheduled and download the observations to the ground-based controller. The ground-based controller then refines the initial orbital models of the target objects based on the locations of the target objects that are derived from the observations.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC52-07NA27344
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA)
Patent Number(s):
9,067,693
Application Number:
13/559,440
OSTI ID:
1187956
Resource Relation:
Patent File Date: 2012 Jul 26
Country of Publication:
United States
Language:
English

References (7)

System for spotting moving objects based on a plurality of artificial satellites patent October 2000
Orienting a satellite with controlled momentum gyros patent November 2000
Eccentric conformance, satellite-position determination module patent May 2001
Phenomenological orbital debris impact risk assessment model and software patent June 2004
Low earth orbit satellite command planning device and method, and low earth orbit satellite control system including the same patent June 2009
Satellite downlink via patterns of uncollimated light patent April 2011
Intelligent sensor tasking for space collision mitigation conference April 2010