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© Copyright: The data comes from official access to web services from MPC, JPL, NASA and ESA, whose origins are the tireless measurements of dozens of professional and amateur observatories around the world
A guide for getting an IAU observatory code you find here: Guide to Minor Body Astrometry (minorplanetcenter.net)
List of observatory codes: List of observatory codes - Wikipedia
The calculated local starting
time of the planning is determined from various sources.
The start and end times of the
planning can only be reliably calculated in this way,
The sidereal time is a central and by no means one of the most important parameters of NEO Planner.
The magic formula is: (Special design for NEO Planner by Father Christoph Gerhard (K74)):
Siderial time (decimal) = 6.625 + 0.06570982 * (Current date - '2019-01-01' + 1) + geographical longitude / 15 + 1.002738 * (midnight UT (decimal))
Then the conversion into hours
and minutes takes place.
The sidereal time in
combination of RA object is the criterion for reliably determining NO GO areas,
Both the sidereal time and midnight UT is saved with every planning in the SiderialTime.txt file in the <Daily Planning> folder (see File Structure settings).
The observation period in local time of the coming night.
The basis is the daily loading
of current astronomical data of a location from
IpGeolocation.io, which takes place automatically when NEO Planner is
started. See also: GEO
Switches for displaying the orbit kinds and classes
On the one hand, the entire window is saved as .jpg in the archive folder. In
addition, the content of the list display is saved both in .txt
and .csv files for further
File Structure settings).
Designations of NEO, NEOCP, comet or special classes.
Comets are displayes in green.
For known objects other than NEOCP, the Uncertainty parameter U
from the orbital elements is displayed.
Otherwise the score that is displayed on the NEOCP for new objects, please refer: The NEO Confirmation Page (minorplanetcenter.net).
Number of all observations of the objects published by the MPC.
Last published observation date of the object. If the last observation was more than 90 days ago: color RED
The IAU observatory with the last published observation date of the object.
Number of previously observed orbits of the object around the sun.
Comet classes are shown in green, special classes like Mars Crossers, TransNeptunians etc. in black.
MOID of an object is the value in AU of the
previously calculated smallest possible distance to earth in an orbit.
H is the absolute magnitude of Solar System bodies.
The diameter of an asteroid is calculated using a standard formula.
Credit: Image from: Conversion of Absolute Magnitude to Diameter (sfasu.edu)
NEO Planner is calculating the diameter with:
Hdurchpot = -0.2 * H
The flyby information comes from web service access to ESA (NEOCC)
databases. A distinction is made as to whether objects are approaching
(blue-violet) or moving away (orange-red).
The Vmax value is only supplied by NEOCC and represents the maximum expected brightness of the object during flyby.
TIn order to facilitate the selection of the NEO to be observed, this window can be used to sort the list according to the columns "last observation", "Earth MOID", "H", flyby date "or flyby distance fields.
Copyright: The author of NEO Planner and all sites of this web is Bernhard Haeusler, Dettelbach, Germany, all rights reserved