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JPL Small-Body Database Browser
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344076 (1998 HJ3)
Classification: Apollo [NEO, PHA]          SPK-ID: 2344076
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7462756710589253 6.1717e-08  
a 1.986089318836145 5.6552e-08 au
q .5039191796387369 1.1542e-07 au
i 6.563752947064101 1.7233e-05 deg
node 223.6487013100756 7.5475e-05 deg
peri 94.08713806676954 7.1273e-05 deg
M 153.2483491600052 3.638e-05 deg
tp 2458165.298989952331
(2018-Feb-15.79898995)
8.602e-05 TDB
period 1022.342912507205
2.80
4.3665e-05
1.195e-07
d
yr
n .3521323379815214 1.504e-08 deg/d
Q 3.468259458033553 9.8755e-08 au
  Orbit Determination Parameters
   # obs. used (total)      145  
   data-arc span      5326 days (14.58 yr)  
   first obs. used      1998-04-19  
   last obs. used      2012-11-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55129  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 09:23:14  

Additional Information
 Earth MOID = .0112254 au 
 Jupiter MOID = 1.94788 au 
 T_jup = 3.437 
[ 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 18.8   n/a MPO242127  

344076 (1998 HJ3)          Discovered 1998-Apr-19 by LINEAR at Socorro
Reference: 20121128/Numbers.arcLast Updated: 2012-12-03

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