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JPL Small-Body Database Browser
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136937 (1998 QT28)
Classification: Main-belt Asteroid          SPK-ID: 2136937
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09917831519367186 5.0402e-08  
a 2.436245691715611 1.7466e-08 au
q 2.194622948613415 1.2576e-07 au
i 4.898489190293174 5.3729e-06 deg
node 265.7631233270924 7.4394e-05 deg
peri 20.99399929774127 8.0532e-05 deg
M 195.41549501965 3.1314e-05 deg
tp 2459235.489432565550
(2021-Jan-20.98943257)
0.000122 TDB
period 1388.929023123351
3.80
1.4937e-05
4.09e-08
d
yr
n .2591925102050577 2.7874e-09 deg/d
Q 2.677868434817806 1.9199e-08 au
  Orbit Determination Parameters
   # obs. used (total)      325  
   data-arc span      7436 days (20.36 yr)  
   first obs. used      1998-08-22  
   last obs. used      2018-12-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55348  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:49:03  

Additional Information
 Earth MOID = 1.1784 au 
 Jupiter MOID = 2.44142 au 
 T_jup = 3.493 
[ 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 16.4   n/a MPO426853  

136937 (1998 QT28)          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 QT28 = 2002 RJ187 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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