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91586 (1999 SS23)
Classification: Main-belt Asteroid          SPK-ID: 2091586
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1451983031296441 5.447e-08  
a 3.006219734948909 2.3587e-08 au
q 2.569721730599479 1.6809e-07 au
i 1.801368531837122 5.4442e-06 deg
node 169.682683996879 0.00021078 deg
peri 115.1789276756749 0.000212 deg
M 43.60732529810323 2.1121e-05 deg
tp 2458769.885580917691
(2019-Oct-13.38558092)
0.00011209 TDB
period 1903.83588771133
5.21
2.2406e-05
6.134e-08
d
yr
n .1890919287338201 2.2254e-09 deg/d
Q 3.442717739298339 2.7012e-08 au
  Orbit Determination Parameters
   # obs. used (total)      388  
   data-arc span      7610 days (20.84 yr)  
   first obs. used      1999-09-30  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62642  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 08:18:14  

Additional Information
 Earth MOID = 1.55396 au 
 Jupiter MOID = 1.71077 au 
 T_jup = 3.234 
[ 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 15.5   n/a MPO348074  

91586 (1999 SS23)          Discovered 1999-Sep-30 by Spacewatch at Kitt Peak
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 SS23 = 2002 CM123 = 2003 KK10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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