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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1831776054193775 6.1334e-08  
a 2.400618158504098 1.3875e-08 au
q 1.960878672703041 1.4742e-07 au
i 3.032613012944244 6.2671e-06 deg
node 145.8158476298137 0.00010375 deg
peri 208.5961607153337 0.00010474 deg
M 223.1733574138614 1.4349e-05 deg
tp 2457916.858376708119
(2017-Jun-12.35837671)
5.5534e-05 JED
period 1358.573243496033
3.72
1.1778e-05
3.225e-08
d
yr
n .2649838731356195 2.2973e-09 deg/d
Q 2.840357644305154 1.6417e-08 au
  Orbit Determination Parameters
   # obs. used (total)      579  
   data-arc span      10063 days (27.55 yr)  
   first obs. used      1987-09-04  
   last obs. used      2015-03-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59259  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 17:18:11  

Additional Information
 Earth MOID = .954555 au 
 Jupiter MOID = 2.58575 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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