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187204 (2005 SL89)
Classification: Main-belt Asteroid          SPK-ID: 2187204
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1117204527319715 4.7698e-08  
a 2.723816094433928 2.2154e-08 au
q 2.419510127205139 1.3214e-07 au
i 4.600891597836735 5.8044e-06 deg
node 12.10920717042369 6.0497e-05 deg
peri 228.7276823313032 6.494e-05 deg
M 272.6124811838014 2.4433e-05 deg
tp 2459599.076791950047
(2022-Jan-19.57679195)
0.00011242 TDB
period 1641.969551782482
4.50
2.0033e-05
5.485e-08
d
yr
n .2192488889999164 2.6749e-09 deg/d
Q 3.028122061662716 2.4629e-08 au
  Orbit Determination Parameters
   # obs. used (total)      309  
   data-arc span      7445 days (20.38 yr)  
   first obs. used      2000-08-25  
   last obs. used      2021-01-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58086  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 11:56:22  

Additional Information
 Earth MOID = 1.40885 au 
 Jupiter MOID = 1.98737 au 
 T_jup = 3.344 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.1   n/a MPO454289  

187204 (2005 SL89)          Discovered 2005-Sep-24 by Spacewatch at Kitt Peak
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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