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JPL Small-Body Database Browser
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85455 (1997 HJ)
Classification: Main-belt Asteroid          SPK-ID: 2085455
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1705313167661418 3.8499e-08  
a 2.339658965904561 9.7722e-09 au
q 1.940673841665147 8.9401e-08 au
i 4.430900820539756 4.4267e-06 deg
node 38.60181539326074 6.1017e-05 deg
peri 169.2823598158838 6.2691e-05 deg
M 58.09434147221069 1.4932e-05 deg
tp 2458389.560167597121
(2018-Sep-28.06016760)
5.3653e-05 TDB
period 1307.155529103665
3.58
8.1895e-06
2.242e-08
d
yr
n .2754071661593759 1.7255e-09 deg/d
Q 2.738644090143976 1.1439e-08 au
  Orbit Determination Parameters
   # obs. used (total)      560  
   data-arc span      8234 days (22.54 yr)  
   first obs. used      1997-04-11  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51885  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 10:11:26  

Additional Information
 Earth MOID = .936238 au 
 Jupiter MOID = 2.2226 au 
 T_jup = 3.541 
[ 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 MPO240811  

85455 (1997 HJ)          Discovered 1997-Apr-28 by Spacewatch at Kitt Peak
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1997 HJ = 2004 CV95 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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