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136933 (1998 QX4)
Classification: Main-belt Asteroid          SPK-ID: 2136933
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1361054891858468 6.4956e-08  
a 2.376841438468468 1.3903e-08 au
q 2.053340271768525 1.5364e-07 au
i 5.606968054006427 5.9358e-06 deg
node 240.571637360509 5.5354e-05 deg
peri 145.2639606020822 5.8016e-05 deg
M 298.7753571347643 2.0929e-05 deg
tp 2459228.126333107186
(2021-Jan-13.62633311)
7.9029e-05 TDB
period 1338.439492394604
3.66
1.1743e-05
3.215e-08
d
yr
n .2689699474990263 2.3599e-09 deg/d
Q 2.70034260516841 1.5795e-08 au
  Orbit Determination Parameters
   # obs. used (total)      513  
   data-arc span      7566 days (20.71 yr)  
   first obs. used      1998-08-22  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56684  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 07:13:33  

Additional Information
 Earth MOID = 1.06081 au 
 Jupiter MOID = 2.74205 au 
 T_jup = 3.522 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.6   n/a MPO280701  

136933 (1998 QX4)          Discovered 1998-Aug-22 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

[ show close-approach data ]
Alternate Designations
 1998 QX4 = 2000 CT43 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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