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308428 (2005 SP139)
Classification: Main-belt Asteroid          SPK-ID: 2308428
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1281063064191237 7.0067e-08  
a 3.078248665006145 3.2464e-08 au
q 2.683905598292609 2.17e-07 au
i 2.271984286580768 7.3776e-06 deg
node 74.96132311183497 0.00015994 deg
peri 296.705585919889 0.00016269 deg
M 259.3554609809731 2.7195e-05 deg
tp 2459551.995141515735
(2021-Dec-03.49514152)
0.00015207 TDB
period 1972.667895156544
5.40
3.1206e-05
8.544e-08
d
yr
n .1824939721906062 2.8869e-09 deg/d
Q 3.47259173171968 3.6623e-08 au
  Orbit Determination Parameters
   # obs. used (total)      218  
   data-arc span      6704 days (18.35 yr)  
   first obs. used      2000-11-24  
   last obs. used      2019-04-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48863  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 18:17:09  

Additional Information
 Earth MOID = 1.68497 au 
 Jupiter MOID = 1.99113 au 
 T_jup = 3.215 
[ 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 16.7   n/a MPO437366  

308428 (2005 SP139)          Discovered 2005-Sep-25 by Spacewatch at Kitt Peak
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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