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JPL Small-Body Database Browser
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56226 (1999 JQ23)
Classification: Main-belt Asteroid          SPK-ID: 2056226
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2058082900885876 3.4278e-08  
a 2.804066956276729 1.0132e-08 au
q 2.226966730711505 9.5257e-08 au
i 3.53650196819573 4.5189e-06 deg
node 199.5239982166071 5.3725e-05 deg
peri 135.1213071363478 5.473e-05 deg
M 359.8058404768558 9.5361e-06 deg
tp 2458601.424990329264
(2019-Apr-27.92499033)
4.5432e-05 TDB
period 1715.066627391745
4.70
9.2961e-06
2.545e-08
d
yr
n .2099043817017675 1.1377e-09 deg/d
Q 3.381167181841953 1.2218e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1367  
   data-arc span      7546 days (20.66 yr)  
   first obs. used      1999-04-06  
   last obs. used      2019-12-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53449  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 05:41:57  

Additional Information
 Earth MOID = 1.21803 au 
 Jupiter MOID = 2.01597 au 
 T_jup = 3.290 
[ 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 14.4   n/a MPO449364  
diameter diameter 5.684 km 1.678 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
geometric albedo albedo 0.071   0.065 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

56226 (1999 JQ23)          Discovered 1999-May-10 by LINEAR at Socorro
Reference: 20030318/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 JQ23 = 1999 KL8 = 2000 QN171 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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