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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .339210528632 2.8356e-05  
a 57.77967253137512 0.003092 au
q 38.18019926782352 0.00067628 au
i 4.812275691470077 8.6328e-05 deg
node 75.87022330497994 0.00080165 deg
peri 174.6580664946071 0.0051131 deg
M 349.2248979792536 0.0027708 deg
tp 2464198.033144921114
(2034-Aug-23.53314492)
0.97222 TDB
period 160420.9341910123
439.21
12.877
0.03526
d
yr
n .00224409614502899 1.8013e-07 deg/d
Q 77.37914579492673 0.0041408 au
  Orbit Determination Parameters
   # obs. used (total)      73  
   data-arc span      7438 days (20.36 yr)  
   first obs. used      2000-02-12  
   last obs. used      2020-06-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      2  
   norm. resid. RMS      .70443  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 19:49:13  

Additional Information
 Earth MOID = 37.1664 au 
 Jupiter MOID = 32.8364 au 
 T_jup = 6.337 
[ 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 6.83   n/a E2021B25  

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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