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46419 (2002 JO21)
Classification: Main-belt Asteroid          SPK-ID: 2046419
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1515947150772055 3.8329e-08  
a 2.288918346450758 9.6006e-09 au
q 1.941930421885567 8.5498e-08 au
i 7.101269471597564 3.4078e-06 deg
node 102.025021590688 4.8328e-05 deg
peri 156.3930004025006 5.2952e-05 deg
M 112.3859934651127 2.474e-05 deg
tp 2458805.630522232644
(2019-Nov-18.13052223)
8.5837e-05 TDB
period 1264.864131315224
3.46
7.958e-06
2.179e-08
d
yr
n .2846155496762066 1.7907e-09 deg/d
Q 2.635906271015949 1.1056e-08 au
  Orbit Determination Parameters
   # obs. used (total)      671  
   data-arc span      15560 days (42.60 yr)  
   first obs. used      1978-07-07  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57009  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:49:02  

Additional Information
 Earth MOID = .927122 au 
 Jupiter MOID = 2.42697 au 
 T_jup = 3.574 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.10   n/a E2021B10  

46419 (2002 JO21)          Discovered 2002-May-09 by Yeung, W. K. Y. at Desert Eagle
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2002 JO21 = 1978 NW 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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