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(2002 JE9)
Classification: Apollo [NEO, PHA]          SPK-ID: 3125003
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 50 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .416746431993309 1.481e-07  
a 1.067969416689309 1.6876e-08 au
q .6228969728060642 1.6643e-07 au
i 8.828366998464279 5.4123e-06 deg
node 200.0394872387895 4.0685e-05 deg
peri 255.4610535785866 3.5353e-05 deg
M 210.233139912122 1.3465e-05 deg
tp 2459168.206492087161
(2020-Nov-14.70649209)
1.592e-05 TDB
period 403.122140077934
1.10
9.5552e-06
2.616e-08
d
yr
n .8930295913055101 2.1167e-08 deg/d
Q 1.513041860572554 2.3909e-08 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] -1.075742711938606E-13 2.912E-14
ALN [SET] 1. n/a
NK [SET] 0. n/a
NM [SET] 2. n/a
R0 [SET] 1. n/a
  Orbit Determination Parameters
   # obs. used (total)      213  
   data-arc span      7043 days (19.28 yr)  
   first obs. used      2001-05-30  
   last obs. used      2020-09-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4756  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Sep-13 07:19:29  

Additional Information
 Earth MOID = .00547662 au 
 Jupiter MOID = 3.69726 au 
 T_jup = 5.686 
 Nongravitational accels. using nonstandard g(r) = (1 au/ r)^2 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 21.2   n/a MPO232508  

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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