RaMAP v 1.7 is a free cross plateform software writen under java by Esteban Holgado N.

Radio Meteor Activity Projection

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The Radio Meteor Observation Bulletin (RMOB) web site (www.rmob.org) collects information on Radio Meteor Reflection

counts that have been registered by several observers around the world.

This information is recorded in RMOB Survey files, which is a time based format. The sample data content is composed

by a matrix of hours versus days. A meteor reflection count for every UTC hour of every day in a month is provided.

The RMOB File contains observer's related information, as latitude and longitude. With the UTC time, the date and the

Longitude information of the observer, it is possible to calculate the Julian Day (Julian Day calculation from Jean

Meeus, (1991), Astronomical Algorithms and the Local Sideral Time (LST) (Local Sideral Time calculation from Simon

Newcomb Sideral Time formula) of the observer at the UTC hour of the count, and consequently, the Right Ascension (RA)

of the local meridian of the observer at that time. The declination is directly obtained from the Observer's Latitude.

The observer's count for every UTC hour is normalized using the own observer's average figure calculated over a complete

month of data. With the RA and Dec calculated as indicated before, we have the observer's zenit at the UTC time of every

count (in fact, the zenit is calculated based on UTC + 30 minutes, to have a centered representation for every UTC hour).

Once the zenit is in this way located, a square of 15º by 15º of Sky Region, centered at that zenit, is coloured based on

the normalized count.

The contribution of all observers is then averaged providing a final picture with a spatial granularity of 5º by 5º of

Sky Region. In summary, the Radio Meteor Activity Projection program produces a couloured representation of the Meteor

Activity Projection over a Star Chart" or "SkyMAP", assigning a colour, which is directly proportional to the average

of the normalized contribution of all observers counts.

Copyleft (c) - 2014 - Esteban Holgado N. Gran Canaria - Spain

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