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49656 (1999 JK92)
Classification: Main-belt Asteroid          SPK-ID: 2049656
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1249689563273309 3.9057e-08  
a 3.141778982429028 1.9666e-08 au
q 2.749154141983729 1.2468e-07 au
i 13.71905750593549 4.4498e-06 deg
node 112.0486212872618 1.6988e-05 deg
peri 339.7019391995452 2.4902e-05 deg
M 42.42340853777956 1.6732e-05 deg
tp 2458760.801712937549
(2019-Oct-04.30171294)		 9.4606e-05 TDB
period 2034.051159883502
5.57		 1.9098e-05
5.229e-08		 d
yr
n .1769866988107706 1.6617e-09 deg/d
Q 3.534403822874328 2.2123e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1559  
   data-arc span      8329 days (22.80 yr)  
   first obs. used      1998-01-25  
   last obs. used      2020-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49326  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 21:28:25  

Additional Information
 Earth MOID = 1.7701 au 
 Jupiter MOID = 1.64708 au 
 T_jup = 3.154 
[ 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 13.5   n/a MPO337654  
diameter diameter 9.380 km 0.116 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.080   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49656 (1999 JK92)          Discovered 1999-May-12 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 JK92 = 2001 TG136 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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