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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2300959216750958 3.5248e-08  
a 2.664510600807977 8.5426e-09 au
q 2.051417578302003 9.6756e-08 au
i 3.227584227777163 3.6357e-06 deg
node 316.8942326096652 4.7434e-05 deg
peri 17.53872688958186 4.7962e-05 deg
M 17.39725262275283 5.424e-06 deg
tp 2459123.728014150616
(2020-Oct-01.22801415)
2.3978e-05 TDB
period 1588.636752312965
4.35
7.6399e-06
2.092e-08
d
yr
n .226609386617715 1.0898e-09 deg/d
Q 3.277603623313952 1.0508e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1999  
   data-arc span      18218 days (49.88 yr)  
   first obs. used      1971-03-25  
   last obs. used      2021-02-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47743  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:11:00  

Additional Information
 Earth MOID = 1.03981 au 
 Jupiter MOID = 2.10605 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 14.25   n/a E2021B10  
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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