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JPL Small-Body Database Browser
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20406 (1998 QJ13)
Classification: Main-belt Asteroid          SPK-ID: 2020406
[ 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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .153131852237403 3.3058e-08  
a 2.929291230255256 1.6978e-08 au
q 2.480723438423488 9.6443e-08 au
i 7.303097348973444 3.6011e-06 deg
node 128.8086526574241 3.7581e-05 deg
peri 129.3753050065266 4.0663e-05 deg
M 93.98552058696612 1.6115e-05 deg
tp 2458122.419858284362
(2018-Jan-03.91985828)		 8.0965e-05 TDB
period 1831.227299085659
5.01		 1.592e-05
4.359e-08		 d
yr
n .1965894677191356 1.7091e-09 deg/d
Q 3.377859022087024 1.9577e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1528  
   data-arc span      9136 days (25.01 yr)  
   first obs. used      1994-11-28  
   last obs. used      2019-12-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53324  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 00:44:04  

Additional Information
 Earth MOID = 1.47295 au 
 Jupiter MOID = 1.73242 au 
 T_jup = 3.247 
[ 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 13.6   n/a MPO416925  
diameter diameter 5.270 km 1.370 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.211   0.128 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20406 (1998 QJ13)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 QJ13 = 1994 WJ7 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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