Monday 19 February 2018, by Baptiste Cecconi, Corentin Louis, Laurent Lamy, Philippe Zarka, Renee Prange
As part the european involvement supporting the Juno mission, the LESIA research group on planetary magnetospheres is mainly working on:
The LESIA team includes : P. Zarka (Juno key personel), B. Cecconi, L. Lamy, C. Louis, R. Prangé and S. Hess (now at Onera, Toulouse).
This page provides public access to polar projections of the Juno magnetic footprint during perijoves ±5h computed with 3 different magnetic field models.
Latitude-Longitude map of the magnetic field magnitude
Comparison of the magnitude of the surface magnetic field between the three magnetic field models given above.
Polar maps
The polar maps accessible below display the magnetic footprint of the Juno spacecraft at each perijove ±5 hours projected onto the northern/southern hemisphere (as seen from above/below) at the 1-bar level, using planetocentric coordinates. The green, blue and red colored lines respectively indicate the Juno footprint derived from the ISaAC, VIPAL and VIP4 internal magnetic field models, complemented by the Connerney current sheet model. The tick marks indicate UTC hours. The black dashed line plots the Io footprint measured from UV observations [link]. The green dotted lines plot the footprint of ISaAC-derived magnetic field lines mapping to 20 and 50 Rj at the equator.
Two pdf files are provided for each perijove (one per hemisphere).
The Juno trajectory was retrieved from the University of Iowa ephemeris service (reference kernels).
ASCII files
The ASCII files accessible below provide for reference the used Juno ephemeris and the coordinates of its northern and southern footprint using the ISaAC internal magnetic field model (only) complemented by the Connerney current sheet model. One ASCII file is provided for each perijove.
Data use policy
Licensing
These data are distributed under the CC-BY-4.0 license. The data are thus freely available and can be modified, processed and redistributed, under the following conditions: citation of the data origin (see below) and link to the present license in the processed or modified dataset. For any questions/request on their use, please contact Corentin Louis at contact.maser@obspm.fr.
Rules of Use and Citation
Although these systems are freely distributed, there is a significant amount of work behind their generation and development, as well as limitations explicited in the referenced articles so that we kindly ask you to inform us of any work using these results.
According to the CC-BY-4.0 license, this dataset shall be either cited or their contributors acknowledged, in any scientific publication using this dataset.
| PJ# | Northern Hemisphere | Southern Hemisphere |
|---|---|---|
| ALL | Northern polar projection [PDF] | Southern polar projection [PDF] |
| PJ1 |
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| PJ1 | Northern & Southern polar projection [ASCII] | |
| PJ3 |
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| PJ3 | Northern & Southern polar projection [ASCII] | |
| PJ4 |
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| PJ4 | Northern & Southern polar projection [ASCII] | |
| PJ5 |
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| PJ5 | Northern & Southern polar projection [ASCII] | |
| PJ6 |
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| PJ6 | Northern & Southern polar projection [ASCII] | |
| PJ7 |
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| PJ7 | Northern & Southern polar projection [ASCII] | |
| PJ8 |
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| PJ8 | Northern & Southern polar projection [ASCII] | |
| PJ9 |
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| PJ9 | Northern & Southern polar projection [ASCII] | |
| PJ10 |
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| PJ10 | Northern & Southern polar projection [ASCII] | |
| PJ11 |
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| PJ11 | Northern & Southern polar projection [ASCII] | |
| PJ12 |
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| PJ12 | Northern & Southern polar projection [ASCII] | |
| PJ13 |
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| PJ13 | Northern & Southern polar projection [ASCII] | |
| PJ14 |
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| PJ14 | Northern & Southern polar projection [ASCII] | |