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160921 (2001 XH115)
Classification: Main-belt Asteroid          SPK-ID: 2160921
[ 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 .1004708418891562 5.2078e-08  
a 2.198029957054892 9.2772e-09 au
q 1.977192036772001 1.1839e-07 au
i 6.74434964376924 3.7154e-06 deg
node 311.1628347763354 3.828e-05 deg
peri 53.36658588359123 4.2478e-05 deg
M 19.23912317305976 1.6086e-05 deg
tp 2459136.889089501833
(2020-Oct-14.38908950)		 5.3313e-05 TDB
period 1190.279181298999
3.26		 7.5357e-06
2.063e-08		 d
yr
n .3024500517661055 1.9148e-09 deg/d
Q 2.418867877337783 1.0209e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1034  
   data-arc span      8057 days (22.06 yr)  
   first obs. used      1998-12-15  
   last obs. used      2021-01-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49338  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 20:03:21  

Additional Information
 Earth MOID = .980399 au 
 Jupiter MOID = 2.98659 au 
 T_jup = 3.652 
[ 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 16.12   n/a E2021B55  
diameter diameter 1.811 km 0.505 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.258   0.121 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

160921 (2001 XH115)          Discovered 2001-Dec-13 by LINEAR at Socorro
Reference: 20070828/Numbers.arcLast Updated: 2007-08-30
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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