# This file contains the orbital elements for the 99942 Apophis (2004 MN4) asteroid
# Author de los primeros datos Lorenzo Barcella on February 20, 2007.


El resto de modificaciones son mias. y los datos como se ve son de la Nasa de de la Web Wikipedia

"2004 MN4" "Sol"
{
 Class "asteroid"
 Mesh "asteroid.cms"
 Texture "asteroid.jpg"
 Radius  0.248233 

 EllipticalOrbit                   NASA                    NASA           wikipedia       wikipedia
 {
	Period 0.885711    
	SemiMajorAxis 0.922     SemiMajorAxis ------"a" 0.9222614151391   Semieje mayor (a)-------0,922
	Eccentricity 0.191      Eccentricity -------"e" 0.1910594150702   Excentricidad (e) ------0,191
	Inclination 3.3         Inclination --------"i" 3.3313146418627   Inclinación (i) --------3,331
	AscendingNode 204.4     AscendingNode ------"node" 204.45915436   ascendente (O)  ----- 204,466
	ArgOfPericenter 126.4   ArgOfPericenter ----"peri" 126.38557131   perihelio ( )   ------126,364
	MeanAnomaly 137         MeanAnomaly -------- "M" 307.363078526    Anomalía media (M) ---111,000
 }
  Albedo            0.7           albedo  ----------0.33
  RotationPeriod    250.601       period -----------323.503874084533    Periodo orbital (P)-- 323,587
}


   wikipedia    wikipedia   wikipedia   

Época 26 de noviembre de 2005 (DJ 2453700,5) 

Excentricidad (e) 0,191 
Semieje mayor (a) 137,992 Gm (0,922 UA) 
Perihelio (q) 111,633 Gm (0,746 UA) 
Afelio (Q) 164,351 Gm (1,099 UA) 
Periodo orbital (P) 323,587 d (0,89 a) 
Velocidad orbital media 30,73 km/s 
Inclinación (i) 3,331° 
Longitud del nodo
ascendente (O) 204,466° 
Argumento del
perihelio ( ) 126,364° 
Anomalía media (M) 111,000° 


       NASA 2005-07-21    NASA     NASA     NASA 2005-07-21

Eccentricity -------"e" 0.191059415070228 --------7.5675e-08
   
SemiMajorAxis ------"a" 0.92226141513913 --------2.4336e-08 AU
 
perihelion distance "q" 0.746054688620808 8.6571e-08 AU 

Inclination --------"i" 3.33131464186276 2.0247e-06 deg 

AscendingNode ------"node" 204.4591523029436 0.00010721 deg 

ArgOfPericenter ----"peri" 126.3855713119676 0.00010632 deg 


MeanAnomaly -------- "M" 307.3630785264554 3.1834e-05 deg 


tp 2454247.800688934931
(2007-May-27.30068894) 3.0375e-05 JED 

period 323.503874084533
Period 0.89          -------------------    1.2805e-05

3.506e-08 d
yr 
n 1.112815112396244 4.4047e-08 deg/d 
Q 1.098468141657453 2.8986e-08 AU 


H 19.7 mag 0.4 Delbo, Cellino and Tedesco (Icarus 2007)   
magnitude slope G 0.25   n/a Delbo, Cellino and Tedesco (Icarus 2007) based on taxonomic 
type (Bowell et al., Asteroids II) 
diameter diameter 0.270 km 0.06 Delbo, Cellino and Tedesco (Icarus 2007)   

geometric albedo albedo 0.33   0.08 Delbo, Cellino and Tedesco (Icarus 2007 


El albedo mide el cociente entre la cantidad de radiación del Sol que incide en el planeta
 y la que refleja.






Epoch           2452028.18381755