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JPL Small-Body Database Browser
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59709 (1999 JL123)
Classification: Main-belt Asteroid          SPK-ID: 2059709
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03753764309904082 5.6995e-08  
a 2.589967783783158 2.0048e-08 au
q 2.492746497477492 1.4168e-07 au
i 12.279702688512 6.5727e-06 deg
node 228.5348867468279 2.7034e-05 deg
peri 86.70889578301937 0.00011242 deg
M 218.2071157490335 0.00011436 deg
tp 2459200.141809181822
(2020-Dec-16.64180918)
0.00048774 TDB
period 1522.439242602434
4.17
1.7677e-05
4.84e-08
d
yr
n .2364626383280961 2.7455e-09 deg/d
Q 2.687189070088824 2.08e-08 au
  Orbit Determination Parameters
   # obs. used (total)      872  
   data-arc span      7273 days (19.91 yr)  
   first obs. used      1999-05-13  
   last obs. used      2019-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55516  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 03:40:04  

Additional Information
 Earth MOID = 1.51412 au 
 Jupiter MOID = 2.40596 au 
 T_jup = 3.387 
[ 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 14.5   n/a MPO385200  
diameter diameter 6.589 km 0.091 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.085   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

59709 (1999 JL123)          Discovered 1999-May-13 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 JL123 = 2000 RM42 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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