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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1821375214533478 6.7308e-08  
a 2.402211720131993 1.5056e-08 AU
q 1.964678831420968 1.638e-07 AU
i 3.030639719638171 6.3957e-06 deg
node 145.8117454234375 0.00012566 deg
peri 208.4271808870624 0.00012696 deg
M 117.5005789926844 1.5733e-05 deg
tp 2456556.633002967418
(2013-Sep-21.13300297)
5.9562e-05 JED
period 1359.926225909731
3.72
1.2785e-05
3.5e-08
d
yr
n .2647202422757718 2.4888e-09 deg/d
Q 2.839744608843017 1.7798e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      462  
   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      .61138  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 23:51:56  

Additional Information
 Earth MOID = .960489 AU 
 T_jup = 3.500 
[ 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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