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146738 (2001 XL81)
Classification: Main-belt Asteroid          SPK-ID: 2146738
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1056904707651825 3.6876e-08  
a 2.840859608859955 2.258e-08 au
q 2.540607819421754 1.1099e-07 au
i 10.22169202649152 4.6014e-06 deg
node 123.2091258330291 2.0768e-05 deg
peri 319.656418063239 2.905e-05 deg
M 305.174643505096 2.1592e-05 deg
tp 2459266.849599743341
(2021-Feb-21.34959974)
0.00010608 TDB
period 1748.932647916574
4.79
2.0852e-05
5.709e-08
d
yr
n .2058398306126037 2.4541e-09 deg/d
Q 3.141111398298156 2.4967e-08 au
  Orbit Determination Parameters
   # obs. used (total)      789  
   data-arc span      7847 days (21.48 yr)  
   first obs. used      1998-03-25  
   last obs. used      2019-09-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54681  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 03:33:43  

Additional Information
 Earth MOID = 1.56644 au 
 Jupiter MOID = 2.05114 au 
 T_jup = 3.278 
[ 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 15.0   n/a MPO493835  
diameter diameter 3.276 km 1.091 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.261   0.092 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

146738 (2001 XL81)          Discovered 2001-Dec-11 by LINEAR at Socorro
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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