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20736 (1999 XV170)
Classification: Main-belt Asteroid          SPK-ID: 2020736
[ 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 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05550332418047962 2.4027e-08  
a 3.163195275764374 1.8768e-08 au
q 2.987627422927462 8.2468e-08 au
i 8.568798588910376 7.4137e-07 deg
node 67.05502370653532 4.7798e-06 deg
peri 10.36388967803353 1.0853e-05 deg
M 275.7387283301333 1.0798e-05 deg
tp 2459681.464409258133
(2022-Apr-11.96440926)		 6.1693e-05 TDB
period 2054.884573915685
5.63		 1.8288e-05
5.007e-08		 d
yr
n .1751923220261477 1.5592e-09 deg/d
Q 3.338763128601286 1.981e-08 au
   Orbit Determination Parameters
   # obs. used (total)      2005  
   data-arc span      12132 days (33.22 yr)  
   first obs. used      1987-10-23  
   last obs. used      2021-01-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46075  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:29:28  

Additional Information
 Earth MOID = 2.0027 au 
 Jupiter MOID = 1.88196 au 
 T_jup = 3.185 
[ 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 12.68   n/a E2021B10  
diameter diameter 14.819 km 2.054 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.082   0.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

20736 (1999 XV170)          Discovered 1999-Dec-10 by LINEAR at Socorro
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 XV170 = 1987 UW7 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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