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192618 (1999 JP4)
Classification: Inner Main-belt Asteroid          SPK-ID: 2192618
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04413074112305793 7.0196e-08  
a 1.951537863802298 9.9863e-09 au
q 1.865415051542993 1.3905e-07 au
i 20.44572358153921 7.8386e-06 deg
node 233.4648868568231 1.1856e-05 deg
peri 3.271132183669623 6.8517e-05 deg
M 324.3032121264127 7.2558e-05 deg
tp 2459299.239412178573
(2021-Mar-25.73941218)
0.00020109 TDB
period 995.7811473168284
2.73
7.6434e-06
2.093e-08
d
yr
n .3615252216513982 2.775e-09 deg/d
Q 2.037660676061603 1.0427e-08 au
  Orbit Determination Parameters
   # obs. used (total)      416  
   data-arc span      7587 days (20.77 yr)  
   first obs. used      1999-05-10  
   last obs. used      2020-02-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5799  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:16:53  

Additional Information
 Earth MOID = .853009 au 
 Jupiter MOID = 2.96104 au 
 T_jup = 3.813 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.85   n/a E2021B55  

192618 (1999 JP4)          Discovered 1999-May-10 by LINEAR at Socorro
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

Alternate Designations
 1999 JP4 = 2007 EL201 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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