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JPL Small-Body Database Browser
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393731 (2004 YJ20)
Classification: Main-belt Asteroid          SPK-ID: 2393731
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1056382181843713 1.1464e-07  
a 2.566351492738302 4.4747e-08 au
q 2.295246693810626 2.6827e-07 au
i 5.568667081744626 6.0143e-06 deg
node 115.4369886576924 7.0327e-05 deg
peri 74.53616593212782 8.181e-05 deg
M 205.9865983296247 5.2413e-05 deg
tp 2459642.934190620278
(2022-Mar-04.43419062)
0.00023274 TDB
period 1501.663531322329
4.11
3.9275e-05
1.075e-07
d
yr
n .2397341298439821 6.2701e-09 deg/d
Q 2.837456291665978 4.9475e-08 au
  Orbit Determination Parameters
   # obs. used (total)      122  
   data-arc span      5398 days (14.78 yr)  
   first obs. used      2004-12-18  
   last obs. used      2019-09-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5523  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 13:08:28  

Additional Information
 Earth MOID = 1.30347 au 
 Jupiter MOID = 2.13417 au 
 T_jup = 3.418 
[ 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 17.1   n/a MPO450381  

393731 (2004 YJ20)          Discovered 2004-Dec-18 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2014-05-15

[ show close-approach data ]
Alternate Designations
 2004 YJ20 = 2010 MU113 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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