Public MIMI Uncalibrated Data

Cassini MIMI<br>Magnetospheric IMaging
Instrument

MIMI uncalibrated data is available at the Planetary Data System Plasma Interactions Node (PPI) in PDS 3 Format. https://pds-ppi.igpp.ucla.edu/
The data files are avaliable individually by navigating the menus starting at the PPI node but we find using the following link or the ones in the following table makes it easier to obtain the files. https://pds-ppi.igpp.ucla.edu/archive1/

The data is organized into the following mission phases.

Mission Phase PDS Instrument Data Set Description Link

Solar Wind COMIMI_0SW 1999-003 to 2004-012
minus the days in the
following 3 phases COMIMI_0SW

Venus Flyby COMIMI_0VEN 1999-175 COMIMI_0VEN

Earth Flyby COMIMI_0EAR 1999-229 to 1999-236 COMIMI_0EAR

Jupiter Flyby COMIMI_0JUP 2000-363 to 2001-089 COMIMI_0JUP

Saturn Tour COMIMI_0SAT 2004-013 to present COMIMI_0SAT

Sensor Data Type Directory/File Description

LEMMS Accumulation Rates LEMMS_ACCUMULATION_RATES
ACC Tables of counts for various particle channels.

Fine Accumulation Rates LEMMS_FINE_ACCUMULATION_RATES
FRT Tables of counts for various particle channels. The fine rate data are comprised of a small subset of the channels measured at a finer time cadence, typically eight times more frequently than the normal accumulator rates

Pulse Height Analysis LEMMS_PULSE_HEIGHT_ANALYSIS
PHA The LEMMS PHA data is a set of 64 closely spaced energy channels covering 12 to 833 keV for protons, 39 to 2295 keV for F detector electrons and 6.7 to 451 keV for E channel electrons.

CHEMS Basic and Science Rates CHEMS_SCIENCE_RATES
SCI The Science Accumulator Rates contain counts for all of the science channels.

Accumulation Rates CHEMS_ACCUMULATION_RATES
ACC The Accumulation Rates contain diagnostic counts i.e., all valid triggers, or all time of flight (TOF) stop events.

Pulse Height Analysis CHEMS_PULSE_HEIGHT_ANALYSIS
PHA CHEMS PHA data is more typical than LEMMS PHA in that it provides a list of individually detected particles, with specific detection parameters for each event, including TOF, energy deposited in the SSD, and telescope number.

INCA Images INCA_IMAGES
IMG INCA images are relatively low resolution (up to 64 by 64 pixels), large field of view (90° by 120°) pictures of neutrals, similar to any remote sensing imager. Note however, that INCA has an ion mode in which neutral counts are drowned by incident ions. These ion images offer very good pitch angle distributions of in-situ particle distributions.

Accumulation Rates INCA_ACCUMULATION_RATES
ACC INCA rate channel data consists of diagnostic counters for assessing instrument performance and health.

Pulse Height Analysis INCA_PULSE_HEIGHT_ANALYSIS
PHA INCA PHA data is similar in concept to the CHEMS PHA data, providing event characteristics for a subset of incident particles, either ions or neutrals.

MIMI Home MIMI Public Data Uncalibrated Data Calibrated Data MIDL Analysis Software INCA Analysis Software IDL, Auxiliary Files SPICE Kernel Set

Comments to MIMI Webmaster at APL Updated: Jan 15, 2013

Mission Phase	PDS Instrument Data Set	Description	Link

MIMI uncalibrated data is available at the Planetary Data System Plasma Interactions Node (PPI) in PDS 3 Format. https://pds-ppi.igpp.ucla.edu/ The data files are avaliable individually by navigating the menus starting at the PPI node but we find using the following link or the ones in the following table makes it easier to obtain the files. https://pds-ppi.igpp.ucla.edu/archive1/ The data is organized into the following mission phases.
Solar Wind	COMIMI_0SW	1999-003 to 2004-012 minus the days in the following 3 phases	COMIMI_0SW
Venus Flyby	COMIMI_0VEN	1999-175	COMIMI_0VEN
Earth Flyby	COMIMI_0EAR	1999-229 to 1999-236	COMIMI_0EAR
Jupiter Flyby	COMIMI_0JUP	2000-363 to 2001-089	COMIMI_0JUP
Saturn Tour	COMIMI_0SAT	2004-013 to present	COMIMI_0SAT
Sensor	Data Type	Directory/File	Description
LEMMS	Accumulation Rates	LEMMS_ACCUMULATION_RATES ACC	Tables of counts for various particle channels.
	Fine Accumulation Rates	LEMMS_FINE_ACCUMULATION_RATES FRT	Tables of counts for various particle channels. The fine rate data are comprised of a small subset of the channels measured at a finer time cadence, typically eight times more frequently than the normal accumulator rates
	Pulse Height Analysis	LEMMS_PULSE_HEIGHT_ANALYSIS PHA	The LEMMS PHA data is a set of 64 closely spaced energy channels covering 12 to 833 keV for protons, 39 to 2295 keV for F detector electrons and 6.7 to 451 keV for E channel electrons.
CHEMS	Basic and Science Rates	CHEMS_SCIENCE_RATES SCI	The Science Accumulator Rates contain counts for all of the science channels.
	Accumulation Rates	CHEMS_ACCUMULATION_RATES ACC	The Accumulation Rates contain diagnostic counts i.e., all valid triggers, or all time of flight (TOF) stop events.
	Pulse Height Analysis	CHEMS_PULSE_HEIGHT_ANALYSIS PHA	CHEMS PHA data is more typical than LEMMS PHA in that it provides a list of individually detected particles, with specific detection parameters for each event, including TOF, energy deposited in the SSD, and telescope number.
INCA	Images	INCA_IMAGES IMG	INCA images are relatively low resolution (up to 64 by 64 pixels), large field of view (90° by 120°) pictures of neutrals, similar to any remote sensing imager. Note however, that INCA has an ion mode in which neutral counts are drowned by incident ions. These ion images offer very good pitch angle distributions of in-situ particle distributions.
	Accumulation Rates	INCA_ACCUMULATION_RATES ACC	INCA rate channel data consists of diagnostic counters for assessing instrument performance and health.
	Pulse Height Analysis	INCA_PULSE_HEIGHT_ANALYSIS PHA	INCA PHA data is similar in concept to the CHEMS PHA data, providing event characteristics for a subset of incident particles, either ions or neutrals.