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160646 (1999 XK44)
Classification: Main-belt Asteroid          SPK-ID: 2160646
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1881277680997195 4.8855e-08  
a 2.621341114536742 1.0385e-08 au
q 2.128194061230914 1.3061e-07 au
i 1.122017004620473 5.6472e-06 deg
node 350.9267464320478 0.00020916 deg
peri 60.75575405098119 0.00020977 deg
M 349.5538754558673 1.2771e-05 deg
tp 2459245.481759001801
(2021-Jan-30.98175900)
5.4958e-05 TDB
period 1550.185733688558
4.24
9.2117e-06
2.522e-08
d
yr
n .2322302367880818 1.38e-09 deg/d
Q 3.114488167842571 1.2338e-08 au
  Orbit Determination Parameters
   # obs. used (total)      734  
   data-arc span      7740 days (21.19 yr)  
   first obs. used      1999-11-03  
   last obs. used      2021-01-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49989  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 11:02:13  

Additional Information
 Earth MOID = 1.13849 au 
 Jupiter MOID = 2.25968 au 
 T_jup = 3.379 
[ 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 15.83   n/a E2021B55  

160646 (1999 XK44)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20070828/Numbers.arcLast Updated: 2007-08-30
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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