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ReadMe file

--How to use the page:
 1. The object name can be select from the leftmost box.
 2. Initial and final dates (format: YYYY-MM-DD) sets the search time interval of the occultation events to
    be shown for the selected object.
 3. Maximum number of maps per page is 50.
 4. Click on Filter to see the results. If more than 50 maps are returned, new
    pages are created.
 5. Only predictions for the years 2017 and 2018 are available. Predictions to a more distant
    future will certainly be determined. 
 6. In addition to the maps, prediction tables are provided (one per year). Each table contains all the necessary
    information to build all the occultation maps for a given object in a given year.

--About the prediction maps:
 1. Ephemerides were obtained from the JPL (almost all of them) and from J. Desmars (NIMA software - 
    Desmars et al. 2015 - 10.1051/0004-6361/201526498).
 2. Magnitudes R* provided in the maps are G magnitudes from the Gaia DR1, normalized by a 
    reference shadow speed (see Assafin et al. 2010 - 10.1051/0004-6361/200913690).
 3. Near IR magnitude (K) in the maps are not real.
 4. Star positions come from Gaia DR1 (no proper motions for stars fainter than G~12.5)
 5. Bright stars or stars in very crowded fields may be missing in Gaia DR1 (but will be 
    included in the next releases).
 6. A diameter of 200 km (the distance between the parallel blue lines) has been considered to all 
    bodies when determining the maps.
 7. The arrow in the lower right part of the maps indicate the sense of the shadow´s movement.
 8. Red dots are provided at each minute.
 9. White zones are daylight. Dark grey zones indicate night. Light grey zones indicate twilight or dawn.
10. Quantities provided are: date and time of the event at closest approach (larger red dot), 
    RA, DEC (J2000) of the star to be occulted, closest approch and position angle of the shadow´s
    path, shadow´s speed (km/s), occulting body distance (AU), G magnitude normalized to a reference
    shadow, not yet provided K magnitude normalized to a reference shadow, longitude of the sub-solar point.
    Further details can be seen in Assafin et al. 2010 - 10.1051/0004-6361/200913690
11. Maps where the shadow path do not appear means that the shadow is outside
    the Earth. This is so due to a tolerance adopted as a result of the uncertainties
    in the predictions. In some cases, orbit updates may bring the shadow back on
    the Earth for a potentially interesting event.
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