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146775 (2001 XD226)
Classification: Main-belt Asteroid          SPK-ID: 2146775
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0648683144513081 3.989e-08  
a 2.778527468710053 1.4147e-08 au
q 2.598289075158172 1.1021e-07 au
i 3.335726235286121 3.9699e-06 deg
node 261.23876518359 8.1595e-05 deg
peri 146.3921722909562 9.1498e-05 deg
M 59.66277084326321 3.9848e-05 deg
tp 2458920.136555573750
(2020-Mar-11.63655557)
0.0001873 TDB
period 1691.688779567408
4.63
1.292e-05
3.537e-08
d
yr
n .2128051000563223 1.6253e-09 deg/d
Q 2.958765862261934 1.5065e-08 au
  Orbit Determination Parameters
   # obs. used (total)      554  
   data-arc span      8904 days (24.38 yr)  
   first obs. used      1996-10-04  
   last obs. used      2021-02-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52893  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 19:02:36  

Additional Information
 Earth MOID = 1.60801 au 
 Jupiter MOID = 2.29728 au 
 T_jup = 3.329 
[ 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 16.09   n/a MPCxxxxx  
diameter diameter 3.982 km 0.280 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.036   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

146775 (2001 XD226)          Discovered 2001-Dec-15 by LINEAR at Socorro
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

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