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91189 (1998 SM1)
Classification: Outer Main-belt Asteroid          SPK-ID: 2091189
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1597328017085974 3.7354e-08  
a 3.217253689134194 2.4917e-08 au
q 2.703352743561468 1.2651e-07 au
i 33.86665137320536 5.0007e-06 deg
node 200.7276973635438 7.9427e-06 deg
peri 124.5408074636179 1.9076e-05 deg
M 26.08627286256264 1.6065e-05 deg
tp 2459243.765931659578
(2021-Jan-29.26593166)
9.3797e-05 TDB
period 2107.785381692531
5.77
2.4487e-05
6.704e-08
d
yr
n .1707953775212747 1.9842e-09 deg/d
Q 3.73115463470692 2.8897e-08 au
  Orbit Determination Parameters
   # obs. used (total)      969  
   data-arc span      8363 days (22.90 yr)  
   first obs. used      1998-09-14  
   last obs. used      2021-08-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51537  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 02:01:44  

Additional Information
 Earth MOID = 1.79547 au 
 Jupiter MOID = 1.99778 au 
 T_jup = 2.906 
[ 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 14.03   n/a MPO637239  

91189 (1998 SM1)          Discovered 1998-Sep-16 by ODAS at Caussols
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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