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JPL Small-Body Database Browser
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376449 (2012 HH57)
Classification: Main-belt Asteroid          SPK-ID: 2376449
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06430079739567106 7.4627e-08  
a 2.707994451354777 7.9093e-08 au
q 2.533868248789612 1.7132e-07 au
i 5.153320869286065 1.3874e-05 deg
node 186.724429610021 7.7844e-05 deg
peri 89.77195423709496 0.00019445 deg
M 235.6704376740151 0.00019266 deg
tp 2459562.636759944026
(2021-Dec-14.13675994)
0.00089175 TDB
period 1627.683953790885
4.46
7.131e-05
1.952e-07
d
yr
n .2211731578243786 9.6897e-09 deg/d
Q 2.882120653919942 8.4178e-08 au
  Orbit Determination Parameters
   # obs. used (total)      73  
   data-arc span      5656 days (15.49 yr)  
   first obs. used      2003-04-24  
   last obs. used      2018-10-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .70252  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-31 05:05:29  

Additional Information
 Earth MOID = 1.52429 au 
 Jupiter MOID = 2.18398 au 
 T_jup = 3.355 
[ 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 17.0   n/a MPO471856  

376449 (2012 HH57)          Discovered 2012-Mar-24 by Spacewatch at Kitt Peak
Reference: Last Updated: 2013-10-21
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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