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JPL Small-Body Database Browser
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531224 (2012 HK85)
Classification: TransNeptunian Object          SPK-ID: 2531224
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3444877549059315 4.1314e-05  
a 58.30041376273657 0.0039201 au
q 38.21663511552457 0.00070144 au
i 4.806487156531349 0.00011986 deg
node 75.90942271447844 0.0011452 deg
peri 173.9760948074224 0.0056722 deg
M 347.918564583486 0.0028079 deg
tp 2464057.097481507871
(2034-Apr-04.59748151)
1.0474 TDB
period 162594.511795987
445.16
16.399
0.0449
d
yr
n .002214096872173056 2.2332e-07 deg/d
Q 78.38419240994855 0.0052706 au
  Orbit Determination Parameters
   # obs. used (total)      67  
   data-arc span      6671 days (18.26 yr)  
   first obs. used      2000-02-12  
   last obs. used      2018-05-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      2  
   norm. resid. RMS      .69704  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 11:13:54  

Additional Information
 Earth MOID = 37.2025 au 
 Jupiter MOID = 32.8734 au 
 T_jup = 6.352 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 6.9   n/a E2018Y78  

531224 (2012 HK85)          Discovered 2012-Apr-27 by Pan-STARRS 1 at Haleakala
Reference: Last Updated: 2019-05-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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