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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2420589406971235 8.8615e-08  
a 2.354082062637655 1.6278e-08 au
q 1.784255452241484 2.0046e-07 au
i 5.349033851352355 6.6381e-06 deg
node 171.1045502446675 6.1629e-05 deg
peri 209.923331524058 6.3036e-05 deg
M 302.8543325170945 1.9252e-05 deg
tp 2458809.916855010889
(2019-Nov-22.41685501)
7.2383e-05 TDB
period 1319.261304043254
3.61
1.3684e-05
3.746e-08
d
yr
n .2728799813173303 2.8304e-09 deg/d
Q 2.923908673033825 2.0218e-08 au
  Orbit Determination Parameters
   # obs. used (total)      317  
   data-arc span      6159 days (16.86 yr)  
   first obs. used      2001-07-24  
   last obs. used      2018-06-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56043  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 07:59:26  

Additional Information
 Earth MOID = .788232 au 
 Jupiter MOID = 2.53448 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 16.4   n/a MPO413019  
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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