Kronos IDL library

Library to retrieve and process CASSINI-RPWS-HFR data

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localization_3a.pro


Contains the localization_3a procedure

Author information

Author

Baptiste Cecconi, Laurent Lamy

History

2009/02/20: Created

2009/02/20: Last Edit

Routines

top source LOCALIZATION_3A

LOCALIZATION_3A, aj1, h1 [, mfl_model=sometype] [, test=sometype] [, VERBOSE=sometype] [, harmonic=sometype] [, output_path=sometype] [, nocrt=sometype] [, source=sometype]

Instead of computing a grid of magnetic field lines in advance, we use a dichotomic algorithm to obtain the intersection of each direction of arrival with the correponding iso-fc surface, on its visible side as seen from Cassini. If there is no intersection, we determine the line which is perpendicular to the direction of arrival and which passes through the center of Saturn. The "intersection point" is then the intersection between the iso-fc surface and that latter line. We also store the distance between the direction of arrival and the iso-fc surface, measured on that line. Once the "intersection point" is determined, we follow he magnetic field line down to the surface of Saturn (top of the ionosphere) to find the foot print position of that field line, using the MFL_FOOT(V30) routine.

we use iso-fc and not iso-fx as the locus of SKR emission regions.

Parameters

aj1 in required type=sometype

A parameter named aj1

h1 in required type=sometype

A parameter named h1

Keywords

mfl_model in optional type=sometype

A keyword named mfl_model

test in optional type=sometype

A keyword named test

VERBOSE in optional type=sometype

A keyword named VERBOSE

harmonic in optional type=sometype

/HARMONIC keyword to compute localization supposing we observe the harmonic.

output_path in optional type=sometype

A keyword named output_path

nocrt in optional type=sometype

A keyword named nocrt

source in optional type=sometype

A keyword named source

Other attributes

Uses:

iso_fc_intersect, load_data_ephem, load_data_n3bi, localization, magnetic_field, mfl_foot, xyz_to_rtp

Statistics

Lines:
132 lines
Cyclomatic complexity:
29
Modified cyclomatic complexity:
29

File attributes

Modification date: Mon Mar 30 15:48:09 2015
Lines: 132