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JPL Small-Body Database Browser
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193902 (2001 QJ242)
Classification: Main-belt Asteroid          SPK-ID: 2193902
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2421734032416615 5.1745e-08  
a 2.354168639972886 6.7151e-09 au
q 1.784051608625858 1.2289e-07 au
i 5.349148626874598 6.0261e-06 deg
node 171.0983387489762 4.2943e-05 deg
peri 209.9689775209376 4.4516e-05 deg
M 51.97953571862921 9.2798e-06 deg
tp 2458810.004519119238
(2019-Nov-22.50451912)
3.3807e-05 TDB
period 1319.334083480396
3.61
5.645e-06
1.546e-08
d
yr
n .2728649282297945 1.1675e-09 deg/d
Q 2.924285671319913 8.3413e-09 au
  Orbit Determination Parameters
   # obs. used (total)      457  
   data-arc span      6740 days (18.45 yr)  
   first obs. used      2001-07-24  
   last obs. used      2020-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51982  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 23:11:32  

Additional Information
 Earth MOID = .788811 au 
 Jupiter MOID = 2.53705 au 
 T_jup = 3.510 
[ 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 16.5   n/a MPO494073  
diameter diameter 3.152 km 1.271 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.054   0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

193902 (2001 QJ242)          Discovered 2001-Aug-24 by LINEAR at Socorro
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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