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24657 (1987 SP11)
Classification: Main-belt Asteroid          SPK-ID: 2024657
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1833677325753873 5.7383e-08  
a 2.400198673657397 1.3258e-08 au
q 1.960079685138388 1.389e-07 au
i 3.03263159666831 5.8269e-06 deg
node 145.8158006897411 0.00010229 deg
peri 208.6345125081255 0.0001032 deg
M 276.1503040349985 1.44e-05 deg
tp 2457916.850267078153
(2017-Jun-12.35026708)
5.5273e-05 JED
period 1358.217162715423
3.72
1.1253e-05
3.081e-08
d
yr
n .2650533433698247 2.196e-09 deg/d
Q 2.840317662176405 1.5689e-08 au
  Orbit Determination Parameters
   # obs. used (total)      609  
   data-arc span      10455 days (28.62 yr)  
   first obs. used      1987-09-04  
   last obs. used      2016-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5973  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:43:37  

Additional Information
 Earth MOID = .954714 au 
 Jupiter MOID = 2.58627 au 
 T_jup = 3.501 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.5 mag n/a MPO333046  

24657 (1987 SP11)          Discovered 1987-Sep-17 by Debehogne, H. at La Silla
Reference: 20010606/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1987 SP11 = 1998 OL9 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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