NSTAR diagnostic package architecture and Deep Space One spacecraft event detection

The Deep Space One mission is demonstrating the long-duration use of an Ion Propulsion Subsystem (IPS). The NASA Solar Electric Propulsion Technology Applications Readiness Project developed the NSTAR Diagnostics Package (NDP) to monitor the effects of the IPS on the spacecraft environment. The NDP...

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Bibliographic Details
Published in:	2000 IEEE Aerospace Conference. Proceedings (Cat. No.00TH8484) Vol. 6; pp. 293 - 307 vol.6
Main Authors:	Henry, M.D., Brinza, D.E., Mactutis, A.T., McCarty, A.T., Rademacher, J.D., vanZandt, T.R., Johnson, R., Moses, S., Musmann, G., Kuhnke, F.
Format:	Conference Proceeding
Language:	English
Published:	IEEE 2000
Subjects:	Engines Magnetic field measurement Monitoring NASA Packaging Plasma measurements Propulsion Space missions Space technology Space vehicles
Online Access:	Get full text
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Summary:	The Deep Space One mission is demonstrating the long-duration use of an Ion Propulsion Subsystem (IPS). The NASA Solar Electric Propulsion Technology Applications Readiness Project developed the NSTAR Diagnostics Package (NDP) to monitor the effects of the IPS on the spacecraft environment. The NDP measures contamination, plasma characteristics, electric fields, and magnetic fields. This paper describes the NDP requirements, development process, and flight systems' functionality. NDP functionality exceeded expectations; it became an effective tool in the detection and diagnosis of spacecraft functionality and system anomalies. NDP detects hydrazine thruster firings (planned and not planned), ion engine gimbal stepper motor currents, solar array currents, spacecraft charging, as well as a number of other phenomena. Examples of selected ion engine and spacecraft signatures and their interpretations are discussed.
ISBN:	9780780358461 0780358465
ISSN:	1095-323X 2996-2358
DOI:	10.1109/AERO.2000.877905