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120853 (1998 QK4)
Classification: Main-belt Asteroid          SPK-ID: 2120853
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1916756549923381 5.9048e-08  
a 2.250879654888279 1.3362e-08 au
q 1.81944082272864 1.3109e-07 au
i 8.836476362925096 5.4233e-06 deg
node 75.44768415194896 3.7944e-05 deg
peri 287.9135113580395 4.0747e-05 deg
M 128.7223479530687 1.925e-05 deg
tp 2458559.459682046931
(2019-Mar-16.95968205)
6.3379e-05 TDB
period 1233.465027541239
3.38
1.0984e-05
3.007e-08
d
yr
n .2918607272697594 2.599e-09 deg/d
Q 2.682318487047918 1.5924e-08 au
  Orbit Determination Parameters
   # obs. used (total)      302  
   data-arc span      8776 days (24.03 yr)  
   first obs. used      1996-01-24  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .508  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 06:23:33  

Additional Information
 Earth MOID = .841176 au 
 Jupiter MOID = 2.81674 au 
 T_jup = 3.587 
[ 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 16.8   n/a MPO348205  

120853 (1998 QK4)          Discovered 1998-Aug-17 by Zoltowski, F. B. at Woomera
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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