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CARA Status and Upcoming Enhancements
NTRS Full-Text: Click to View  [PDF Size: 862 KB]
Author and Affiliation:
Johnson, Megan(AI Solutions, Inc., Lanham, MD, United States)
Abstract: CAS 8.4.3 was deployed to operations on 13 June 2017. Discrepancies Between 3D Pc Estimates and advanced Monte Carlo Equinoctial-Sampling Pc Estimates discovered and discussed at 23 May 2017 Useras (Registered Trademark) Forum. The patch created the Reporting Pc, which is the greater value between the calculated 2D and 3D Pc values This changed the Pc reported in the CDMs to the Reporting Pc This changed the Pc reported on the Summary Report to the Reporting Pc This changed the Pc reported on Maneuver Screening Analysis (MSA) Report to the Reporting Pc. Both the 2D and 3D Pc added to the Summary Report details section The patch also updated the 3D Pc algorithm to eliminate velocity covariance from the Pc calculation This will bring 2D and 3D Pc into close alignment for vast majority of events, particularly for the events in which the 2D/3D discrepancy was found.
Publication Date: Dec 08, 2017
Document ID:
20170011564
(Acquired Dec 18, 2017)
Subject Category: ASTRODYNAMICS
Report/Patent Number: GSFC-E-DAA-TN48978
Document Type: Oral/Visual Presentation
Meeting Information: A-Train Constellation Mission Operations Working Group (MOWG); 8-10 Dec. 2017; Merritt Island, FL; United States
Meeting Sponsor: NASA Kennedy Space Center; Cocoa Beach, FL, United States
Contract/Grant/Task Num: NNG14VC09C
Financial Sponsor: NASA Goddard Space Flight Center; Greenbelt, MD, United States
Organization Source: NASA Goddard Space Flight Center; Greenbelt, MD, United States
Description: 30p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright; Public use permitted
NASA Terms: ALGORITHMS; CONSTELLATIONS; FEEDBACK; LAUNCHING; MISSION PLANNING; MONTE CARLO METHOD; RISK MANAGEMENT; STREAMLINING; TREND ANALYSIS; ALIGNMENT; AUGMENTATION; EARTH ORBITAL ENVIRONMENTS; ESTIMATES; LANDSAT SATELLITES; NORMALIZING
Other Descriptors: CONJUNCTION ASSESSMEN
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Last Modified: December 18, 2017
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