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78449 (2002 RU23)
Classification: Main-belt Asteroid          SPK-ID: 2078449
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .137771662834602 4.6842e-08  
a 2.680310376971854 1.3758e-08 au
q 2.311039559423603 1.2161e-07 au
i 4.829479095443387 5.0497e-06 deg
node 344.8297757137637 5.3547e-05 deg
peri 18.94327259685368 5.6697e-05 deg
M .2601116324916053 1.706e-05 deg
tp 2458999.341933943198
(2020-May-29.84193394)
7.5954e-05 TDB
period 1602.787912463008
4.39
1.234e-05
3.379e-08
d
yr
n .2246086317476572 1.7293e-09 deg/d
Q 3.049581194520105 1.5653e-08 au
  Orbit Determination Parameters
   # obs. used (total)      581  
   data-arc span      8064 days (22.08 yr)  
   first obs. used      1998-10-19  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49565  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 22:06:34  

Additional Information
 Earth MOID = 1.30915 au 
 Jupiter MOID = 2.4071 au 
 T_jup = 3.358 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.6   n/a MPO436330  

78449 (2002 RU23)          Discovered 2002-Sep-04 by LONEOS at Anderson Mesa
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2002 RU23 = 2000 EP142 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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