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90355 (2003 HC12)
Classification: Main-belt Asteroid          SPK-ID: 2090355
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1906974643670438 5.3974e-08  
a 2.699002275660778 1.6297e-08 au
q 2.184309385371387 1.4726e-07 au
i 14.53607769127193 5.4907e-06 deg
node 131.3225353646365 1.5767e-05 deg
peri 205.6195857556812 1.8245e-05 deg
M 219.6382005578401 9.0816e-06 deg
tp 2459631.965647588573
(2022-Feb-21.46564759)
4.2341e-05 TDB
period 1619.583348427811
4.43
1.4669e-05
4.016e-08
d
yr
n .2222793907763161 2.0133e-09 deg/d
Q 3.213695165950169 1.9405e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1075  
   data-arc span      7625 days (20.88 yr)  
   first obs. used      1999-06-14  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55948  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 16:31:12  

Additional Information
 Earth MOID = 1.18207 au 
 Jupiter MOID = 2.1707 au 
 T_jup = 3.297 
[ 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 14.9   n/a MPO333558  

90355 (2003 HC12)          Discovered 2003-Apr-25 by LONEOS at Anderson Mesa
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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