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JPL Small-Body Database Browser
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80381 (1999 XD160)
Classification: Main-belt Asteroid          SPK-ID: 2080381
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06892817814303481 3.8103e-08  
a 2.26922645253458 9.4877e-09 au
q 2.11281280736739 9.031e-08 au
i 3.958635002476611 4.7277e-06 deg
node 135.9401910403544 6.8835e-05 deg
peri 300.5324318007299 8.1094e-05 deg
M 252.948435849241 4.2957e-05 deg
tp 2458971.783542920820
(2020-May-02.28354292)
0.00014974 TDB
period 1248.576576268059
3.42
7.8305e-06
2.144e-08
d
yr
n .2883283307108197 1.8083e-09 deg/d
Q 2.425640097701771 1.0142e-08 au
  Orbit Determination Parameters
   # obs. used (total)      851  
   data-arc span      7295 days (19.97 yr)  
   first obs. used      1999-12-08  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56403  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 07:46:35  

Additional Information
 Earth MOID = 1.13124 au 
 Jupiter MOID = 2.71209 au 
 T_jup = 3.607 
[ 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 15.8   n/a MPO502639  
diameter diameter 1.812 km 0.451 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.61 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]
geometric albedo albedo 0.339   0.146 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

80381 (1999 XD160)          Discovered 1999-Dec-08 by LINEAR at Socorro
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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