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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05526019642345079 3.3105e-08  
a 3.166227716780025 2.0274e-08 au
q 2.991261351229387 1.1222e-07 au
i 8.569729837605033 3.5527e-06 deg
node 67.09111471324726 3.0773e-05 deg
peri 9.358334647845247 5.4422e-05 deg
M 241.6972274735799 4.6156e-05 deg
tp 2459676.745002129963
(2022-Apr-07.24500213)		 0.00026553 TDB
period 2057.840197383527
5.63		 1.9765e-05
5.411e-08		 d
yr
n .1749406977556993 1.6803e-09 deg/d
Q 3.341194082330663 2.1394e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1922  
   data-arc span      12078 days (33.07 yr)  
   first obs. used      1987-10-23  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4617  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 03:14:42  

Additional Information
 Earth MOID = 2.00662 au 
 Jupiter MOID = 1.88239 au 
 T_jup = 3.184 
[ 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 12.6   n/a MPO350967  
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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