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129777 (1999 JO23)
Classification: Main-belt Asteroid          SPK-ID: 2129777
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2426033332160589 2.5741e-08  
a 2.313645251890752 6.7521e-09 au
q 1.752347201902548 5.9979e-08 au
i 3.913519674871055 3.6149e-06 deg
node 55.46595599895112 5.8835e-05 deg
peri 228.8335023282555 5.9535e-05 deg
M 313.5791879604088 9.7295e-06 deg
tp 2459166.250105804804
(2020-Nov-12.75010580)
3.4932e-05 TDB
period 1285.41564587104
3.52
5.627e-06
1.541e-08
d
yr
n .2800650522314531 1.226e-09 deg/d
Q 2.874943301878957 8.3902e-09 au
  Orbit Determination Parameters
   # obs. used (total)      905  
   data-arc span      8603 days (23.55 yr)  
   first obs. used      1996-10-07  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52191  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 21:46:57  

Additional Information
 Earth MOID = .739034 au 
 Jupiter MOID = 2.29511 au 
 T_jup = 3.540 
[ 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 16.0   n/a MPO432776  
diameter diameter 1.344 km 0.267 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.427   0.155 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

129777 (1999 JO23)          Discovered 1999-May-10 by LINEAR at Socorro
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

Alternate Designations
 1999 JO23 = 1996 TM42 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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