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A Geometric Analysis to Protect Manned Assets from Newly Launched Objects - Cola Gap Analysis
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Author and Affiliation:
Hametz, Mark E.(AI Solutions, Inc., Lanham, MD, United States);
Beaver, Brian A.(NASA Kennedy Space Center, Cocoa Beach, FL, United States)
Abstract: A safety risk was identified for the International Space Station (ISS) by The Aerospace Corporation, where the ISS would be unable to react to a conjunction with a newly launched object following the end of the launch Collision Avoidance (COLA) process. Once an object is launched, there is a finite period of time required to track, catalog, and evaluate that new object as part of standard onorbit COLA screening processes. Additionally, should a conjunction be identified, there is an additional period of time required to plan and execute a collision avoidance maneuver. While the computed prelaunch probability of collision with any object is extremely low, NASA/JSC has requested that all US launches take additional steps to protect the ISS during this "COLA gap" period. This paper details a geometric-based COLA gap analysis method developed by the NASA Launch Services Program to determine if launch window cutouts are required to mitigate this risk. Additionally, this paper presents the results of several missions where this process has been used operationally.
Publication Date: Feb 10, 2013
Document ID:
20130009700
(Acquired Feb 14, 2013)
Subject Category: SPACE TRANSPORTATION AND SAFETY
Report/Patent Number: AAS 13-360, KSC-2012-264, KSC-2013-018R
Document Type: Conference Paper
Meeting Information: 23rd AAS/AIAA Space Flight Mechanics Meeting; 10-14 Feb. 2013; Kauai, HI; United States
Meeting Sponsor: American Inst. of Aeronautics and Astronautics; Reston, VA, United States
American Astronautical Society; New York, NY, United States
Contract/Grant/Task Num: NNK12LA12C
Financial Sponsor: NASA Kennedy Space Center; Cocoa Beach, FL, United States
Organization Source: NASA Kennedy Space Center; Cocoa Beach, FL, United States
Description: 20p; In English; Original contains color illustrations
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright; Distribution as joint owner in the copyright
NASA Terms: COLLISION AVOIDANCE; INTERNATIONAL SPACE STATION; PROBABILITY THEORY; RISK; LAUNCH WINDOWS; CATALOGS (PUBLICATIONS); LAUNCHING; SAFETY
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