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222828 (2002 ER2)
Classification: Main-belt Asteroid          SPK-ID: 2222828
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2159175557515211 5.1801e-08  
a 3.00927052196836 2.653e-08 au
q 2.359516186269847 1.4941e-07 au
i 6.139935736184121 5.1593e-06 deg
node 86.96548771291364 4.4158e-05 deg
peri 157.101351695608 4.5201e-05 deg
M 173.810857138792 1.0095e-05 deg
tp 2458279.913347622259
(2018-Jun-10.41334762)
5.148e-05 TDB
period 1906.734713305898
5.22
2.5215e-05
6.903e-08
d
yr
n .1888044506075162 2.4968e-09 deg/d
Q 3.659024857666873 3.2259e-08 au
  Orbit Determination Parameters
   # obs. used (total)      295  
   data-arc span      9103 days (24.92 yr)  
   first obs. used      1996-01-12  
   last obs. used      2020-12-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56992  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:21:15  

Additional Information
 Earth MOID = 1.34623 au 
 Jupiter MOID = 1.37722 au 
 T_jup = 3.206 
[ 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 15.81   n/a MPCxxxxx  

222828 (2002 ER2)          Discovered 2002-Mar-09 by Kusnirak, P. at Ondrejov
Reference: 20091102/Numbers.arcLast Updated: 2009-11-04

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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