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49863 (1999 XK104)
Classification: Main-belt Asteroid          SPK-ID: 2049863
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1683379569465946 4.1348e-08  
a 2.177075451253609 6.6235e-09 au
q 1.810591017670991 8.8924e-08 au
i 2.047433180199738 3.5639e-06 deg
node 291.1819557454348 0.0001462 deg
peri 57.08324599681831 0.00014676 deg
M 82.49159520041027 1.4001e-05 deg
tp 2458331.646404336421
(2018-Aug-01.14640434)
4.5243e-05 TDB
period 1173.298857947252
3.21
5.3544e-06
1.466e-08
d
yr
n .3068271971472289 1.4002e-09 deg/d
Q 2.543559884836228 7.7385e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1036  
   data-arc span      8043 days (22.02 yr)  
   first obs. used      1997-01-11  
   last obs. used      2019-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49835  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:52:34  

Additional Information
 Earth MOID = .803988 au 
 Jupiter MOID = 2.86457 au 
 T_jup = 3.664 
[ 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 16.0   n/a MPO449320  
diameter diameter 4.178 km 0.207 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.053   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49863 (1999 XK104)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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