Class: Orbit::Satellite

Inherits:
Object
  • Object
show all
Defined in:
lib/orbit/satellite.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(tle_string) ⇒ Satellite

Returns a new instance of Satellite.



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# File 'lib/orbit/satellite.rb', line 7

def initialize( tle_string )
  @tle = Tle.new(tle_string)
  @orbit = Orbit.new(@tle)
end

Instance Attribute Details

#orbit ⇒ Object

Returns the value of attribute orbit.



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# File 'lib/orbit/satellite.rb', line 5

def orbit
  @orbit
end

#tle ⇒ Object

Returns the value of attribute tle.



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# File 'lib/orbit/satellite.rb', line 4

def tle
  @tle
end

Instance Method Details

#current_position ⇒ Object 



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# File 'lib/orbit/satellite.rb', line 33

def current_position
  since_epoch = ( Time.new.utc.to_f - @tle.epoch.to_f )

  position_at_seconds_since_epoch( since_epoch )
end

#eci_position_at_seconds_since_epoch(time_since_epoch) ⇒ Object 



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# File 'lib/orbit/satellite.rb', line 18

def eci_position_at_seconds_since_epoch( time_since_epoch )
  t = time_since_epoch / 60.0

  p = @orbit.get_position( t ) #For whatever reason this is decimal minutes
end

#eci_position_at_time(time) ⇒ Object 



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# File 'lib/orbit/satellite.rb', line 12

def eci_position_at_time( time )
  since_epoch = ( time.utc.to_f - @tle.epoch.to_f )

  eci_position_at_seconds_since_epoch( since_epoch )
end

#position_at_seconds_since_epoch(time_since_epoch) ⇒ Object 



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# File 'lib/orbit/satellite.rb', line 29

def position_at_seconds_since_epoch( time_since_epoch )
  eci_position_at_seconds_since_epoch( time_since_epoch ).to_geo
end

#position_at_time(time) ⇒ Object 



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# File 'lib/orbit/satellite.rb', line 24

def position_at_time( time )
  seconds_since_epoch = ( time.utc.to_f - @tle.epoch.to_f )
  position_at_seconds_since_epoch( seconds_since_epoch )
end