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59707 (1999 JX121)
Classification: Main-belt Asteroid          SPK-ID: 2059707
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2865661078988725 5.4725e-08  
a 2.566927086922197 1.5109e-08 au
q 1.831332782362712 1.4394e-07 au
i 11.78796881709509 4.359e-06 deg
node 83.76853238130097 2.7919e-05 deg
peri 268.1833877033922 2.8543e-05 deg
M 327.6805813394031 8.1603e-06 deg
tp 2459135.358947423339
(2020-Oct-12.85894742)
3.4628e-05 TDB
period 1502.168760590738
4.11
1.3263e-05
3.631e-08
d
yr
n .2396534992902046 2.116e-09 deg/d
Q 3.302521391481682 1.9439e-08 au
  Orbit Determination Parameters
   # obs. used (total)      904  
   data-arc span      7315 days (20.03 yr)  
   first obs. used      1999-05-13  
   last obs. used      2019-05-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5824  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 12:52:33  

Additional Information
 Earth MOID = .87135 au 
 Jupiter MOID = 2.27171 au 
 T_jup = 3.345 
[ 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 MPO436199  
diameter diameter 6.221 km 0.426 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.038   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

59707 (1999 JX121)          Discovered 1999-May-13 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 JX121 = 2000 WC98 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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