Neo Planner V2.3 - Revise - Explanations
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Neo Planner calculates observation times in R.A. order of
currently visible comets according to the official publication of the MPC and
additionally the most recently observed comets from
CometasObs.
The reason for including the
CometasObs observations lies in the sometimes
considerable delay of the MPC in the publication of the last observations.
In addition, all NEOCP objects that can be observed according to the parameter settings are displayed.
In addition, visible NEOs are included that have not yet been numbered, i.e. have a provisional number.
Observation date and time in UT::
The optimal
observation times of the objects are first calculated based on their meridian
passage and thus the sequence is determined.
The observation time in UT is then
calculated according to the calculated exposure times of all recordings.
The indicated position in R.A. and Dec. corresponds to the calculated Obs.time.
The position is not determined from the MPC NEOCP, but from the
Scout
Ephemeris page
with an accuracy of 1 minute.
The altitude corresponds to the height of the object above the horizon at the time of the displayed observation time.
The displays of the moon phase, the distance between the moon and the object in degrees and altitude of the Moon relate to the observation time and come from the Ephemeris Scout from JPL.
Comets: Average Vmag of the last 10
observations found in the
MPC Database.
If the MPC-Vmag is
more than 0.5 mag brighter than the average Vmag,
the MPC Vmag ist displayed and used for the calculation of the exposure time.
NEOs: Average Vmag of the last 10
observations.
If the MPC-Vmag is
more than 0.5 mag brighter than the average Vmag,
the MPC Vmag ist displayed and used for the calculation of the exposure time.
If the
MPC-Vmag is 1.0 mag weaker than the average Vmag, than the MPC Vmag ist
displayed and used for the calculation of the exposure time.
NEOCP objects: Vmag of the Scout Query
The displays for arcsec / minute (s / min) and position angle (PA) refer to the observation time and come from JPL's Ephemeris Scout.
A comprehensive description of the calculation of the exposure time can be found on the settings parameter for the sky background on the page for CCD parameters.
The number of images is calculated by multiplying Number groups (No. groups) and images / group.
A comprehensive description of the number of groups can be found on the settings parameter for the sky background on the page for CCD parameters.
Neo Planner uses the entered value from the settings at speeds of the object
greater than 3 arcsec / minute.
At speeds less than 3 arcsec / min. the value is multiplied by 2,
at speeds less than 1 arcsec / min. the value is multiplied by 3 and at speeds
less than 0.1 by 5.
The value of the group can be overwritten manually and adjusted according to your own taste. To do this, press the G key on the position line.
A comprehensive description of the calculation of the images per group can be found on the settings parameter for the sky background on the page for CCD parameters
W = at the suggested time there is a real risk that the object will cross the meridian.
F = the object was not found on the Scout page of the JPL, possibly a nonexistent object.