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469446 (2002 NL8)
Classification: Mars-crossing Asteroid          SPK-ID: 2469446
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .33256089392754 1.1339e-07  
a 2.29480112292977 7.6999e-09 au
q 1.531640010102323 2.5666e-07 au
i 7.01108318491819 4.2597e-06 deg
node 279.366796998876 6.2321e-05 deg
peri 49.20405720297855 6.6309e-05 deg
M 38.5504339389537 2.2048e-05 deg
tp 2458864.530100139851
(2020-Jan-16.03010014)
7.7236e-05 TDB
period 1269.74352680872
3.48
6.3907e-06
1.75e-08
d
yr
n .2835218234227171 1.427e-09 deg/d
Q 3.057962235757217 1.0261e-08 au
  Orbit Determination Parameters
   # obs. used (total)      254  
   data-arc span      6170 days (16.89 yr)  
   first obs. used      2002-07-09  
   last obs. used      2019-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59579  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 13:57:39  

Additional Information
 Earth MOID = .531685 au 
 Jupiter MOID = 2.33787 au 
 T_jup = 3.511 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457126.5 (2015-Apr-14.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3323687785837642 1.1383e-07  
q 1.532531866234568 2.5816e-07 au
tp 2457595.452512552258
(2016-Jul-25.95251255)
7.2932e-05 TDB
node 279.4037734156416 6.234e-05 deg
peri 49.26251386728976 6.634e-05 deg
i 7.009054287803835 4.2587e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      254  
   data-arc span      6170 days (16.89 yr)  
   first obs. used      2002-07-09  
   last obs. used      2019-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59579  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 13:57:39  

Additional Information
 Jupiter MOID = 2.33787 au 
 T_jup = 3.511 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.295823397030608E-14 -2.938397482535513E-14 7.610343389150673E-12 8.264166760956071E-13 2.338240415411754E-12 -1.726471582557174E-13
q -2.938397482535513E-14 6.664414671804816E-14 -1.723284353852207E-11 -1.875293346953791E-12 -5.295461884921236E-12 3.913499803840543E-13
tp 7.610343389150673E-12 -1.723284353852207E-11 5.319089947205777E-9 4.972353723077151E-10 1.761075772199637E-9 -1.086497983962002E-10
node 8.264166760956071E-13 -1.875293346953791E-12 4.972353723077151E-10 3.886323169575599E-9 -3.655274375188988E-9 2.146989544226277E-11
peri 2.338240415411754E-12 -5.295461884921236E-12 1.761075772199637E-9 -3.655274375188988E-9 4.401008673668387E-9 -6.689347002950561E-11
i -1.726471582557174E-13 3.913499803840543E-13 -1.086497983962002E-10 2.146989544226277E-11 -6.689347002950561E-11 1.813622606905811E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.7   n/a MPO477208  

469446 (2002 NL8)          Discovered 2002-Jul-09 by LINEAR at Socorro
Reference: Last Updated: 2016-08-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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