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187802 (1999 JU2)
Classification: Main-belt Asteroid          SPK-ID: 2187802
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2232711674259622 6.1609e-08  
a 2.695340917603464 1.6288e-08 au
q 2.093549004319174 1.6569e-07 au
i 13.80678753533955 4.4076e-06 deg
node 115.9617609461896 2.9717e-05 deg
peri 118.2782923219819 3.2489e-05 deg
M 314.0529404002029 1.2461e-05 deg
tp 2459406.788114484755
(2021-Jul-11.28811448)
5.5451e-05 TDB
period 1616.288873789867
4.43
1.4651e-05
4.011e-08
d
yr
n .2227324618995078 2.019e-09 deg/d
Q 3.297132830887753 1.9925e-08 au
  Orbit Determination Parameters
   # obs. used (total)      426  
   data-arc span      8028 days (21.98 yr)  
   first obs. used      1999-05-08  
   last obs. used      2021-04-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52394  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:15:19  

Additional Information
 Earth MOID = 1.11896 au 
 Jupiter MOID = 1.8893 au 
 T_jup = 3.293 
[ 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 16.19   n/a MPCxxxxx  

187802 (1999 JU2)          Discovered 1999-May-08 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20080618/Numbers.arcLast Updated: 2008-06-20

[ show close-approach data ]
Alternate Designations
 1999 JU2 = 2003 FP 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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