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277853 (2006 HX121)
Classification: Inner Main-belt Asteroid          SPK-ID: 2277853
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 .05320286485556006 5.8879e-08  
a 1.876436868469486 1.5718e-08 au
q 1.776605051346314 1.0431e-07 au
i 26.50317967427562 6.7611e-06 deg
node 99.77799497276769 1.2845e-05 deg
peri 240.1365247186762 6.3612e-05 deg
M 70.66463157797452 6.3165e-05 deg
tp 2458816.211191873510
(2019-Nov-28.71119187)
0.00016446 TDB
period 938.8568148456199
2.57
1.1796e-05
3.23e-08
d
yr
n .3834450517986561 4.8179e-09 deg/d
Q 1.976268685592658 1.6554e-08 au
  Orbit Determination Parameters
   # obs. used (total)      246  
   data-arc span      6648 days (18.20 yr)  
   first obs. used      1999-12-16  
   last obs. used      2018-02-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61586  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Mar-06 01:44:27  

Additional Information
 Earth MOID = .799953 au 
 Jupiter MOID = 3.23646 au 
 T_jup = 3.846 
[ 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 MPO476191  

277853 (2006 HX121)          Discovered 2006-Apr-27 by CSS at Catalina
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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