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JPL Small-Body Database Browser
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19536 (1999 JM4)
Classification: Main-belt Asteroid          SPK-ID: 2019536
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1884409502445011 5.319e-08  
a 2.295821820712806 1.047e-08 au
q 1.863194975225624 1.23e-07 au
i 24.03201396020896 7.1239e-06 deg
node 227.1773002573332 1.2171e-05 deg
peri 136.0669146138155 2.1127e-05 deg
M 258.2305511755154 1.8745e-05 deg
tp 2459359.687006282051
(2021-May-25.18700628)
6.7044e-05 TDB
period 1270.590769186012
3.48
8.692e-06
2.38e-08
d
yr
n .2833327682922092 1.9382e-09 deg/d
Q 2.728448666199987 1.2443e-08 au
  Orbit Determination Parameters
   # obs. used (total)      759  
   data-arc span      12139 days (33.23 yr)  
   first obs. used      1986-11-03  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53475  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:50:13  

Additional Information
 Earth MOID = .914003 au 
 Jupiter MOID = 2.83094 au 
 T_jup = 3.458 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.9   n/a MPO319329  
diameter diameter 2.744 km 0.535 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.244   0.096 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

19536 (1999 JM4)          Discovered 1999-May-10 by LINEAR at Socorro
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 JM4 = 1986 VK = 1993 VQ1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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