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249558 (2858 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2249558
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1878352609758667 9.8289e-08  
a 2.239327654892611 1.1194e-08 au
q 1.818702960425382 2.1998e-07 au
i 2.638742383221538 1.0395e-05 deg
node 161.0906082668158 0.00019717 deg
peri 180.6973592102862 0.00019863 deg
M 308.7140151150294 2.5561e-05 deg
tp 2459174.869728524881
(2020-Nov-21.36972852)
8.7199e-05 TDB
period 1223.981608420919
3.35
9.1777e-06
2.513e-08
d
yr
n .2941220664781414 2.2054e-09 deg/d
Q 2.65995234935984 1.3297e-08 au
  Orbit Determination Parameters
   # obs. used (total)      162  
   data-arc span      20906 days (57.24 yr)  
   first obs. used      1960-09-24  
   last obs. used      2017-12-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6427  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 10:24:39  

Additional Information
 Earth MOID = .810462 au 
 Jupiter MOID = 2.73553 au 
 T_jup = 3.611 
[ 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 17.8   n/a MPO433635  

249558 (2858 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

Alternate Designations
 2858 P-L = 2007 TZ123 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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