Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3425387085709564 4.1302e-05  
a 58.09342754157924 0.0038915 au
q 38.19417989502626 0.00070698 au
i 4.808407025235452 0.00012003 deg
node 75.89570245319686 0.0011454 deg
peri 174.3453094453208 0.0056901 deg
M 348.5751632094113 0.0027886 deg
tp 2464133.088328331321
(2034-Jun-19.58832833)
1.0491 TDB
period 161729.3824032008
442.79
16.251
0.04449
d
yr
n .002225940609248721 2.2366e-07 deg/d
Q 77.99267518813222 0.0052245 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 = 37.1802 au 
 Jupiter MOID = 32.8512 au 
 T_jup = 6.346 
[ 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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jul-07 11:00 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin