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187803 (1999 JN8)
Classification: Main-belt Asteroid          SPK-ID: 2187803
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2613405708267014 9.9756e-08  
a 2.658135467281636 3.0878e-08 au
q 1.963456826927553 2.7347e-07 au
i 35.5925572548886 9.1686e-06 deg
node 50.69382306292937 1.5009e-05 deg
peri 203.3931434582925 2.8771e-05 deg
M 329.4910958955259 3.599e-05 deg
tp 2459334.649234659167
(2021-Apr-30.14923466)		 0.00016007 TDB
period 1582.93868281614
4.33		 2.7582e-05
7.552e-08		 d
yr
n .2274251074334346 3.9628e-09 deg/d
Q 3.352814107635719 3.8948e-08 au
   Orbit Determination Parameters
   # obs. used (total)      250  
   data-arc span      7950 days (21.77 yr)  
   first obs. used      1999-04-10  
   last obs. used      2021-01-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62237  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 19:52:02  

Additional Information
 Earth MOID = .971743 au 
 Jupiter MOID = 1.73838 au 
 T_jup = 3.080 
[ 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 15.59   n/a E2021B55  

187803 (1999 JN8)          Discovered 1999-May-14 by LINEAR at Socorro
Reference: 20080618/Numbers.arcLast Updated: 2008-06-20

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Alternate Designations
 1999 JN8 = 2003 FX2 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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