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JPL Small-Body Database Browser
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85460 (1997 HG12)
Classification: Main-belt Asteroid          SPK-ID: 2085460
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1201963788782519 3.5036e-08  
a 2.27660458616398 9.8941e-09 au
q 2.002964958769448 7.9068e-08 au
i 6.268493199906523 5.119e-06 deg
node 205.5453728967584 3.6475e-05 deg
peri 64.94375521881544 4.2901e-05 deg
M 104.7661121852234 2.2228e-05 deg
tp 2458235.369456613092
(2018-Apr-26.86945661)
7.7543e-05 TDB
period 1254.670932017524
3.44
8.1791e-06
2.239e-08
d
yr
n .2869278237131996 1.8705e-09 deg/d
Q 2.550244213558511 1.1083e-08 au
  Orbit Determination Parameters
   # obs. used (total)      598  
   data-arc span      21230 days (58.12 yr)  
   first obs. used      1960-09-24  
   last obs. used      2018-11-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58337  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:06:59  

Additional Information
 Earth MOID = .996348 au 
 Jupiter MOID = 2.52808 au 
 T_jup = 3.591 
[ 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 16.3   n/a MPO453285  

85460 (1997 HG12)          Discovered 1997-Apr-30 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1997 HG12 = 2001 QV204 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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