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JPL Small-Body Database Browser
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91580 (1999 SS15)
Classification: Main-belt Asteroid          SPK-ID: 2091580
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1112045454527205 7.3125e-08  
a 3.011135192811465 3.3516e-08 au
q 2.676283272398176 2.0952e-07 au
i 8.65301324692367 6.3324e-06 deg
node 232.0143834570385 3.505e-05 deg
peri 165.243471205192 4.2883e-05 deg
M 323.8560357262685 2.3994e-05 deg
tp 2459192.113936251440
(2020-Dec-08.61393625)
0.00012802 TDB
period 1908.507227599605
5.23
3.1864e-05
8.724e-08
d
yr
n .1886290996407619 3.1493e-09 deg/d
Q 3.345987113224755 3.7243e-08 au
  Orbit Determination Parameters
   # obs. used (total)      609  
   data-arc span      6823 days (18.68 yr)  
   first obs. used      1999-09-30  
   last obs. used      2018-06-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55656  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:24:24  

Additional Information
 Earth MOID = 1.68505 au 
 Jupiter MOID = 2.05788 au 
 T_jup = 3.223 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.8   n/a MPO439644  

91580 (1999 SS15)          Discovered 1999-Sep-30 by CSS at Catalina
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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