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181555 (2006 US273)
Classification: Main-belt Asteroid          SPK-ID: 2181555
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03193599592889413 5.3134e-08  
a 2.71618977485547 2.0348e-08 au
q 2.629445549263582 1.5303e-07 au
i 1.847319699707767 4.9437e-06 deg
node 334.4173127912485 0.00013504 deg
peri 219.9556446400324 0.00015244 deg
M 279.8386918751264 7.2895e-05 deg
tp 2459564.583407176472
(2021-Dec-16.08340718)
0.00033185 TDB
period 1635.078439330752
4.48
1.8373e-05
5.03e-08
d
yr
n .2201729234148242 2.4741e-09 deg/d
Q 2.802934000447359 2.0998e-08 au
  Orbit Determination Parameters
   # obs. used (total)      297  
   data-arc span      7089 days (19.41 yr)  
   first obs. used      2001-09-23  
   last obs. used      2021-02-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56253  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:31:05  

Additional Information
 Earth MOID = 1.62701 au 
 Jupiter MOID = 2.1566 au 
 T_jup = 3.359 
[ 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 16.64   n/a MPCxxxxx  

181555 (2006 US273)          Discovered 2006-Oct-27 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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