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JPL Small-Body Database Browser
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376441 (2012 HR39)
Classification: Main-belt Asteroid          SPK-ID: 2376441
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1434618802156984 5.4125e-08  
a 2.25123212903233 2.9585e-08 au
q 1.928266134999363 1.1956e-07 au
i 8.398655925751971 6.3298e-06 deg
node 46.86402270790603 5.8434e-05 deg
peri 198.0616430762843 6.7047e-05 deg
M 118.9888825494074 3.8421e-05 deg
tp 2458592.713607612694
(2019-Apr-19.21360761)
0.00012761 TDB
period 1233.754768631208
3.38
2.432e-05
6.658e-08
d
yr
n .2917921852487774 5.7519e-09 deg/d
Q 2.574198123065298 3.3829e-08 au
  Orbit Determination Parameters
   # obs. used (total)      145  
   data-arc span      5213 days (14.27 yr)  
   first obs. used      2003-10-19  
   last obs. used      2018-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63857  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Feb-06 09:31:01  

Additional Information
 Earth MOID = .917349 au 
 Jupiter MOID = 2.44074 au 
 T_jup = 3.599 
[ 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 17.2   n/a MPO434330  

376441 (2012 HR39)          Discovered 2003-Oct-19 by Spacewatch at Kitt Peak
Reference: Last Updated: 2013-10-21

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