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152257 (2005 SJ129)
Classification: Main-belt Asteroid          SPK-ID: 2152257
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07107778620191013 4.0181e-08  
a 2.854272639075603 2.139e-08 au
q 2.651397258673425 1.2037e-07 au
i 2.24020081320215 4.6106e-06 deg
node 24.83103241862897 0.00012352 deg
peri 17.20832665285322 0.00012921 deg
M 38.1312053231063 3.8855e-05 deg
tp 2459013.939523980351
(2020-Jun-13.43952398)
0.00018941 TDB
period 1761.33355339743
4.82
1.9799e-05
5.421e-08
d
yr
n .2043905876349186 2.2975e-09 deg/d
Q 3.05714801947778 2.291e-08 au
  Orbit Determination Parameters
   # obs. used (total)      338  
   data-arc span      7404 days (20.27 yr)  
   first obs. used      2000-10-01  
   last obs. used      2021-01-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5705  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 19:26:22  

Additional Information
 Earth MOID = 1.65866 au 
 Jupiter MOID = 2.23329 au 
 T_jup = 3.299 
[ 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 16.1   n/a MPO449822  

152257 (2005 SJ129)          Discovered 2005-Sep-29 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20070303/Numbers.arcLast Updated: 2007-03-07

Alternate Designations
 2005 SJ129 = 2002 BX31 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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