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JPL Small-Body Database Browser
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215121 (1999 JB11)
Classification: Mars-crossing Asteroid          SPK-ID: 2215121
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2547676625348869 2.4348e-07  
a 1.842094232885836 4.3233e-09 au
q 1.372788191004516 4.4959e-07 au
i 37.10022330247888 4.5366e-05 deg
node 216.4849293026166 1.3906e-05 deg
peri 30.90489690019092 2.5344e-05 deg
M 144.5226297199492 2.0643e-05 deg
tp 2458633.894019165924
(2019-May-30.39401917)
5.1736e-05 TDB
period 913.2006064102895
2.50
3.2148e-06
8.802e-09
d
yr
n .3942178722538611 1.3878e-09 deg/d
Q 2.311400274767156 5.4247e-09 au
  Orbit Determination Parameters
   # obs. used (total)      225  
   data-arc span      7303 days (19.99 yr)  
   first obs. used      1999-05-14  
   last obs. used      2019-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54944  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 08:21:46  

Additional Information
 Earth MOID = .398397 au 
 Jupiter MOID = 2.7418 au 
 T_jup = 3.742 
[ 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 18.4   n/a MPO300075  

215121 (1999 JB11)          Discovered 1999-May-14 by LINEAR at Socorro
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

[ show close-approach data ]
Alternate Designations
 1999 JB11 = 2004 HJ33 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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