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JPL Small-Body Database Browser
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59507 (1999 JW12)
Classification: Main-belt Asteroid          SPK-ID: 2059507
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1312114009330912 5.8826e-08  
a 2.633679041588496 1.6758e-08 au
q 2.288110324933548 1.5883e-07 au
i 15.29269260569877 6.6506e-06 deg
node 185.3469515567853 1.5538e-05 deg
peri 176.8800196909157 2.2318e-05 deg
M 202.8752300228214 1.7028e-05 deg
tp 2459681.872893786955
(2022-Apr-12.37289379)
7.6082e-05 TDB
period 1561.143044466708
4.27
1.4901e-05
4.08e-08
d
yr
n .2306002651557002 2.201e-09 deg/d
Q 2.979247758243443 1.8957e-08 au
  Orbit Determination Parameters
   # obs. used (total)      854  
   data-arc span      8972 days (24.56 yr)  
   first obs. used      1995-07-03  
   last obs. used      2020-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5632  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 12:48:28  

Additional Information
 Earth MOID = 1.28595 au 
 Jupiter MOID = 2.48328 au 
 T_jup = 3.336 
[ 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 14.7   n/a MPO432148  
diameter diameter 4.221 km 0.211 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.143   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

59507 (1999 JW12)          Discovered 1999-May-14 by CSS at Catalina
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 JW12 = 2000 QJ158 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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