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79511 (1998 JR4)
Classification: Main-belt Asteroid          SPK-ID: 2079511
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1587708094379888 3.7539e-08  
a 2.173809180605069 1.1129e-08 au
q 1.828671737436671 8.33e-08 au
i 8.605541875113277 6.2038e-06 deg
node 47.7144402883765 2.5217e-05 deg
peri 243.7609728197662 3.6834e-05 deg
M 265.4797280901288 3.0947e-05 deg
tp 2459307.864011929583
(2021-Apr-03.36401193)
0.0001018 TDB
period 1170.659394633991
3.21
8.9896e-06
2.461e-08
d
yr
n .3075189945514039 2.3615e-09 deg/d
Q 2.518946623773467 1.2895e-08 au
  Orbit Determination Parameters
   # obs. used (total)      594  
   data-arc span      8042 days (22.02 yr)  
   first obs. used      1998-04-22  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52321  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:41:37  

Additional Information
 Earth MOID = .831794 au 
 Jupiter MOID = 2.66043 au 
 T_jup = 3.656 
[ 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 16.2   n/a MPO468751  

79511 (1998 JR4)          Discovered 1998-May-01 by LINEAR at Socorro
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

[ show close-approach data ]
Alternate Designations
 1998 JR4 = 2001 FO95 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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