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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1819974070861222 7.2515e-08  
a 2.40097949453368 1.3033e-08 AU
q 1.964007452061602 1.7569e-07 AU
i 3.029625822971767 6.9106e-06 deg
node 145.8261439542537 0.00013001 deg
peri 208.2431161422917 0.00013142 deg
M 64.73813794453639 1.647e-05 deg
tp 2456556.135110536382
(2013-Sep-20.63511054)
6.2081e-05 JED
period 1358.879989447195
3.72
1.1065e-05
3.029e-08
d
yr
n .2649240571615536 2.1571e-09 deg/d
Q 2.837951537005758 1.5405e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      460  
   data-arc span      9625 days (26.35 yr)  
   first obs. used      1987-09-04  
   last obs. used      2014-01-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .61182  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jan-22 07:58:12  

Additional Information
 Earth MOID = .958161 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 15.4 mag n/a MPO267798  

24657 (1987 SP11)          Discovered 1987-Sep-17 by Debehogne, H. at La Silla (809)
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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