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JPL Small-Body Database Browser
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56230 (1999 JJ28)
Classification: Main-belt Asteroid          SPK-ID: 2056230
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2391378885936894 4.2829e-08  
a 2.645544424241008 1.3006e-08 au
q 2.012894516447206 1.1506e-07 au
i 3.271635491729772 5.6486e-06 deg
node 42.07083988242327 8.7381e-05 deg
peri 203.5853493536881 8.8169e-05 deg
M 219.1175255167044 1.2453e-05 deg
tp 2459215.571331648541
(2021-Jan-01.07133165)
5.622e-05 TDB
period 1571.704927852678
4.30
1.159e-05
3.173e-08
d
yr
n .2290506275194068 1.6891e-09 deg/d
Q 3.278194332034811 1.6116e-08 au
  Orbit Determination Parameters
   # obs. used (total)      741  
   data-arc span      7185 days (19.67 yr)  
   first obs. used      1999-04-12  
   last obs. used      2018-12-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57237  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 03:23:58  

Additional Information
 Earth MOID = .999956 au 
 Jupiter MOID = 1.75699 au 
 T_jup = 3.349 
[ 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 15.4   n/a MPO385178  

56230 (1999 JJ28)          Discovered 1999-May-10 by LINEAR at Socorro
Reference: 20030318/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 JJ28 = 2000 RG36 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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