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120908 (1998 SO41)
Classification: Outer Main-belt Asteroid          SPK-ID: 2120908
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1825032125410477 5.5789e-08  
a 3.204539673725761 2.6499e-08 au
q 2.619700888555569 1.8763e-07 au
i .4031857388128605 5.8886e-06 deg
node 210.030667175895 0.00070236 deg
peri 153.3507460252112 0.00070247 deg
M 285.529759687405 1.4554e-05 deg
tp 2459433.938176398105
(2021-Aug-07.43817640)
8.7779e-05 TDB
period 2095.303343299771
5.74
2.599e-05
7.116e-08
d
yr
n .1718128313741231 2.1311e-09 deg/d
Q 3.789378458895954 3.1335e-08 au
  Orbit Determination Parameters
   # obs. used (total)      410  
   data-arc span      7526 days (20.61 yr)  
   first obs. used      1998-09-16  
   last obs. used      2019-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63066  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 13:29:12  

Additional Information
 Earth MOID = 1.61743 au 
 Jupiter MOID = 1.67202 au 
 T_jup = 3.167 
[ 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 MPO432709  

120908 (1998 SO41)          Discovered 1998-Sep-25 by Spacewatch at Kitt Peak
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

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