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214493 (2005 US251)
Classification: Main-belt Asteroid          SPK-ID: 2214493
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2732713319535329 5.8911e-08  
a 3.131810961604865 3.7568e-08 au
q 2.275976808700429 1.8667e-07 au
i 10.57952642565199 9.1214e-06 deg
node 38.67336102895789 3.7766e-05 deg
peri 277.194944512694 4.1704e-05 deg
M 216.2734594080749 1.9054e-05 deg
tp 2459408.713700927845
(2021-Jul-13.21370093)
0.00011722 TDB
period 2024.37859518321
5.54
3.6426e-05
9.973e-08
d
yr
n .1778323485817233 3.1998e-09 deg/d
Q 3.987645114509302 4.7834e-08 au
  Orbit Determination Parameters
   # obs. used (total)      289  
   data-arc span      7093 days (19.42 yr)  
   first obs. used      1999-09-05  
   last obs. used      2019-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57645  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 05:31:15  

Additional Information
 Earth MOID = 1.29192 au 
 Jupiter MOID = 1.55025 au 
 T_jup = 3.129 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.2   n/a MPO294357  
diameter diameter 5.259 km 0.169 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.058   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

214493 (2005 US251)          Discovered 2005-Oct-24 by Spacewatch at Kitt Peak
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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