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215342 (2001 US225)
Classification: Main-belt Asteroid          SPK-ID: 2215342
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07500632401460375 6.6103e-08  
a 2.784748927257552 2.9609e-08 au
q 2.575875146920352 1.9973e-07 au
i 5.476754605964874 5.5238e-06 deg
node 89.51743063912622 6.876e-05 deg
peri 242.5368552986606 8.2104e-05 deg
M 42.34147722521822 4.1819e-05 deg
tp 2458800.863016146184
(2019-Nov-13.36301615)
0.00019809 TDB
period 1697.373802172616
4.65
2.7072e-05
7.412e-08
d
yr
n .212092350865322 3.3827e-09 deg/d
Q 2.993622707594752 3.183e-08 au
  Orbit Determination Parameters
   # obs. used (total)      220  
   data-arc span      9773 days (26.76 yr)  
   first obs. used      1992-11-18  
   last obs. used      2019-08-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62733  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:04:08  

Additional Information
 Earth MOID = 1.57055 au 
 Jupiter MOID = 2.26158 au 
 T_jup = 3.321 
[ 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 16.3   n/a MPO440135  
diameter diameter 3.381 km 0.708 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.056   0.036 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

215342 (2001 US225)          Discovered 2001-Oct-16 by NEAT at Palomar
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

[ show close-approach data ]
Alternate Designations
 2001 US225 = 2006 WO61 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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