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49815 (1999 XK56)
Classification: Main-belt Asteroid          SPK-ID: 2049815
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0679606032269859 3.3027e-08  
a 2.305307801749234 8.5975e-09 au
q 2.148637692918479 7.5223e-08 au
i 4.906924202531521 4.0279e-06 deg
node 76.63461010577988 4.4456e-05 deg
peri 117.9566670814611 5.4619e-05 deg
M 188.2828460852691 3.1606e-05 deg
tp 2459610.321859522304
(2022-Jan-30.82185952)
0.00011283 TDB
period 1278.473725094721
3.50
7.152e-06
1.958e-08
d
yr
n .2815857635035307 1.5752e-09 deg/d
Q 2.461977910579989 9.1818e-09 au
  Orbit Determination Parameters
   # obs. used (total)      969  
   data-arc span      15310 days (41.92 yr)  
   first obs. used      1978-11-29  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52956  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:30:44  

Additional Information
 Earth MOID = 1.15157 au 
 Jupiter MOID = 2.49969 au 
 T_jup = 3.580 
[ 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 15.7   n/a MPO502488  

49815 (1999 XK56)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XK56 = 1978 WV13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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