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180244 (2003 UN254)
Classification: Main-belt Asteroid          SPK-ID: 2180244
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1061614980856486 5.6733e-08  
a 2.173118619100695 1.0621e-08 au
q 1.942417090979149 1.263e-07 au
i 5.028974568217638 7.0287e-06 deg
node 36.00681644942441 5.7665e-05 deg
peri 49.36091377354354 6.7908e-05 deg
M 82.68559696008535 3.2499e-05 deg
tp 2458931.748472377307
(2020-Mar-23.24847238)
0.00010551 TDB
period 1170.10160779118
3.20
8.5781e-06
2.349e-08
d
yr
n .3076655887000942 2.2555e-09 deg/d
Q 2.403820147222241 1.1748e-08 au
  Orbit Determination Parameters
   # obs. used (total)      225  
   data-arc span      7410 days (20.29 yr)  
   first obs. used      2000-11-30  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .6452  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:25:43  

Additional Information
 Earth MOID = .96227 au 
 Jupiter MOID = 2.76327 au 
 T_jup = 3.675 
[ 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 17.5   n/a MPO502981  

180244 (2003 UN254)          Discovered 2003-Oct-24 by Spacewatch at Kitt Peak
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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