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"Early on, it was recognized that, in order to accomplish the ISTP scientific goals, there would need to exist the ability to quickly survey, in a coordinated and ongoing fashion, the vast array of scientific data being gathered by the instrumentation. Such a timely survey should reveal scientifically interesting phenomena (events) almost immediately, and should be of great value during the scientific campaigns. Thus, the concept of Key Parameters (KPs) was born. In general, KPs are low resolution time series (on the order of 1 min) computed from each instrument.... In general, each KP data set covers one complete day."
- Mish, W. H, J. L. Green, M. G. Reph, and M. Peredo, "ISTP Science Data Systems and Products," Space Sci. Rev., v71,
pp.822-823, 1995
DISCLAIMER: UVI Key Parameters are presented as summary data only and are governed by the ISTP rules for data usage. In some cases parameters such as pointing and calibration may not be adequate to support quantitative scientific analysis. For this reason, they are not to be used for presentation, publication, or analysis. Please contact us to obtain data for these purposes.
ISTP Key Parameters are available online.
The UVI Key Parameter Generation Software (KPGS) is designed to produce background - corrected, calibrated images with pointing information on a regular basis. The actual output period of the KPGS is a function of data quality and availability but has a typical period of one output record every 5 minutes.
The UVI KPGS produces output only for normal instrument mode when the spacecraft is in 9.2 second science telemetry mode. Thus no Key Parameters (KPs) are produced when the spacecraft is in maneuver telemetry mode or when UVI is in star (fast) mode. In addition, no KPs are produced when the despun platform is pointed away from the earth since no auroral imaging is possible at these times.
A list of KPGS versions is available, briefly detailing differences between different versions of the UVI KPGS.
• Key Parameters
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