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JPL Small-Body Database Browser
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442350 (2011 SJ224)
Classification: Main-belt Asteroid          SPK-ID: 2442350
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09427683254480641 1.8061e-07  
a 2.862890106095882 8.9274e-08 au
q 2.592985894969298 4.8102e-07 au
i 12.55549326956388 1.4115e-05 deg
node 18.67699600778789 5.4881e-05 deg
peri 127.7338784675226 7.5201e-05 deg
M 180.3294190504909 4.6565e-05 deg
tp 2459883.539060502782
(2022-Oct-31.03906050)
0.00023058 TDB
period 1769.316156830014
4.84
8.2759e-05
2.266e-07
d
yr
n .2034684409625197 9.5172e-09 deg/d
Q 3.132794317222467 9.7691e-08 au
  Orbit Determination Parameters
   # obs. used (total)      107  
   data-arc span      6048 days (16.56 yr)  
   first obs. used      2001-10-18  
   last obs. used      2018-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .67254  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:26:33  

Additional Information
 Earth MOID = 1.62291 au 
 Jupiter MOID = 1.88842 au 
 T_jup = 3.259 
[ 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 16.3   n/a MPO437720  

442350 (2011 SJ224)          Discovered 2011-Sep-28 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02

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