Neo Planner V2.3  -  Revise  -  Explanations


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Neo Planner Page


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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

IAU Observatory Code:

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

START:

The calculated local starting time of the planning is determined from various sources.
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 Settings.
The offset hours and minutes that were specified in the Common Restrictions settings are added or subtracted from the determined local sunset and sunrise times.

The start and end times of the planning can only be reliably calculated in this way,
since automatically determined twilight times are not suitable for depicting the observation slots obtained from empirical values.
Only the observer himself can determine when the observation should begin after sunset. This depends on the experience of the observer himself.

Siderial time:

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 formula shows that longitude plays an important role, which enables NEO Planner to be used in all regions of the world.

The sidereal time in combination of RA object is the criterion for reliably determining NO GO areas,
since the transit times of objects through the meridian have to be taken into account, especially with German mounts.
In addition, the sidereal time helps to calculate the correct order of the objects according to RA.

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).

Observation slot start - end:

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 Settings.
The offset hours and minutes that were specified in the Common Restrictions settings are added or subtracted from the determined local sunset and sunrise times.

Save list::

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 use (see File Structure settings).
Additional backup of the Revise Window as an .HTM file.
Now both the Revise Window and the Object Information Window can be saved as an HTM file on the NEO Planner Server and accessed or linked for free use on the Internet via any browser.

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Object:

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.

RA and Dec:

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.

Altitude:

The altitude corresponds to the height of the object above the horizon at the time of the displayed observation time.

Moon Dis Alt:

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.

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Vmag:

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

s/min and PA:

The displays for arcsec / minute (s / min) and position angle (PA) refer to the observation time and come from JPL's Ephemeris Scout.

dRA und dDec:

Display of the dRA and dDec proper motion of NEOCP objects to enable the proper movement in RA and Dec for direct tracking of the objects.

Exp.time:

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.

No. images:

The number of images is calculated by multiplying Number groups (No. groups) and images / group.

No. groups:

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.

Images / group:

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

transit meridian:

Transit of the object thru the Meridian in local time.

Exception:
But the buffer time in R.A. Hours before the meridian transit is also considered, so that there is enough time to photograph the object before the meridian transit.
When displaying the transit time in the Revise Window, this hourly value is already subtracted from the transit time of the object.

obs. time:

Time of observation in local time zone.

NO GO:

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.
On the other hand, this can mean that the object has been kicked out of the NEOCP, either because the object has now received a provisional number (publication of a M.P.E.C),
or the object type has changed (e.g. Main Belt asteroid)

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Reset:

All changes are reversed and the original planning is restored..

Object information:

Displays a window with special information about the objects such as number of previous observations, date and observatory of the last observation,
type of object, orbit element data or flyby data.

Ephemeris links:

By pressing the E key in a line of an objects, you get a display of ephemeris to the minute, which can be selected up to a period of 8 hours.
There you can save the ephemeris with SAVE. The Ephemeris list button then points to a website from which you can call up all the ephemeris of the planning from any PC.

 

 

Copyright: The author of NEO Planner and all sites of this web is Bernhard Haeusler, Dettelbach, Germany, all rights reserved