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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03775658303465199 5.5179e-08  
a 2.591407062325024 1.9091e-08 au
q 2.493564386399765 1.3846e-07 au
i 12.27569376726908 6.4977e-06 deg
node 228.5289335072774 2.6779e-05 deg
peri 85.84266941687942 0.00011047 deg
M 313.6526302851748 0.00011279 deg
tp 2459196.666333748845
(2020-Dec-13.16633375)
0.00047864 TDB
period 1523.70847761389
4.17
1.6837e-05
4.61e-08
d
yr
n .2362656671463533 2.6108e-09 deg/d
Q 2.689249738250282 1.9811e-08 au
  Orbit Determination Parameters
   # obs. used (total)      884  
   data-arc span      7656 days (20.96 yr)  
   first obs. used      1999-05-13  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55199  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 11:48:43  

Additional Information
 Earth MOID = 1.51512 au 
 Jupiter MOID = 2.40279 au 
 T_jup = 3.386 
[ 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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