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13865 (1999 XA170)
Classification: Main-belt Asteroid          SPK-ID: 2013865
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2304922635866417 3.56e-08  
a 2.665796213343528 9.088e-09 au
q 2.05135080986928 9.7679e-08 au
i 3.227231424177167 3.6859e-06 deg
node 316.8951632577487 5.9491e-05 deg
peri 17.55586553842947 5.9921e-05 deg
M 332.0858904116527 6.4168e-06 deg
tp 2459123.770774708400
(2020-Oct-01.27077471)
2.838e-05 TDB
period 1589.786654472019
4.35
8.1297e-06
2.226e-08
d
yr
n .2264454786982464 1.158e-09 deg/d
Q 3.280241616817775 1.1183e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1613  
   data-arc span      18032 days (49.37 yr)  
   first obs. used      1971-03-25  
   last obs. used      2020-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50235  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 00:47:23  

Additional Information
 Earth MOID = 1.04164 au 
 Jupiter MOID = 2.10329 au 
 T_jup = 3.343 
[ 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 14.2   n/a MPO384877  
diameter diameter 8.511 km 0.204 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.061   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

13865 (1999 XA170)          Discovered 1999-Dec-10 by LINEAR at Socorro
Reference: 20000222/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XA170 = 1977 UZ1 = 1981 ST2 = 1981 SZ5 = 1994 RY10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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