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JPL Small-Body Database Browser
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49640 (1999 JH19)
Classification: Main-belt Asteroid          SPK-ID: 2049640
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1259692327923083 3.4681e-08  
a 3.035827870820466 1.9331e-08 au
q 2.653406963043705 1.0851e-07 au
i 4.318626261868718 4.4902e-06 deg
node 13.57968713722422 5.0366e-05 deg
peri 125.0062499350685 5.3199e-05 deg
M 343.9406808115738 1.8483e-05 deg
tp 2458686.686406178181
(2019-Jul-22.18640618)
9.9507e-05 TDB
period 1932.031231218445
5.29
1.8454e-05
5.052e-08
d
yr
n .1863323916213116 1.7797e-09 deg/d
Q 3.418248778597227 2.1766e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1380  
   data-arc span      12031 days (32.94 yr)  
   first obs. used      1986-11-30  
   last obs. used      2019-11-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52441  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 03:45:29  

Additional Information
 Earth MOID = 1.67005 au 
 Jupiter MOID = 1.60941 au 
 T_jup = 3.225 
[ 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 MPO502487  
diameter diameter 10.612 km 0.214 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.075   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49640 (1999 JH19)          Discovered 1999-May-10 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 JH19 = 1986 WO10 = 1996 TR64 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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