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JPL Small-Body Database Browser
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58442 (1996 HR9)
Classification: Main-belt Asteroid          SPK-ID: 2058442
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .210781197696361 7.04e-08  
a 2.299155820592516 7.7711e-09 au
q 1.814537003037466 1.6139e-07 au
i 6.724799993197752 6.4436e-06 deg
node 206.9172935900541 3.7477e-05 deg
peri 32.8880096200904 4.0567e-05 deg
M 200.5658131879005 1.1323e-05 deg
tp 2459164.436215687825
(2020-Nov-10.93621569)
4.0731e-05 TDB
period 1273.359507812976
3.49
6.4559e-06
1.768e-08
d
yr
n .282716701600091 1.4334e-09 deg/d
Q 2.783774638147566 9.4091e-09 au
  Orbit Determination Parameters
   # obs. used (total)      455  
   data-arc span      8605 days (23.56 yr)  
   first obs. used      1996-04-17  
   last obs. used      2019-11-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59083  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 05:06:11  

Additional Information
 Earth MOID = .806942 au 
 Jupiter MOID = 2.22933 au 
 T_jup = 3.554 
[ 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 16.5   n/a MPO309593  

58442 (1996 HR9)          Discovered 1996-Apr-17 by Elst, E. W. at La Silla
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

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