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129687 (1998 SO8)
Classification: Main-belt Asteroid          SPK-ID: 2129687
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3063806632417068 6.3911e-08  
a 2.548277869520424 1.245e-08 au
q 1.767534805732593 1.6537e-07 au
i 8.141657426705152 6.4972e-06 deg
node 185.2094194034274 4.2829e-05 deg
peri 172.9099596488535 4.5151e-05 deg
M 123.9251359786191 1.8658e-05 deg
tp 2458489.023712603600
(2019-Jan-05.52371260)
7.3851e-05 TDB
period 1485.828214015214
4.07
1.0889e-05
2.981e-08
d
yr
n .2422891129703058 1.7756e-09 deg/d
Q 3.329020933308255 1.6264e-08 au
  Orbit Determination Parameters
   # obs. used (total)      423  
   data-arc span      7825 days (21.42 yr)  
   first obs. used      1998-08-28  
   last obs. used      2020-01-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59877  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 07:05:24  

Additional Information
 Earth MOID = .764362 au 
 Jupiter MOID = 2.13113 au 
 T_jup = 3.361 
[ 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 16.3   n/a MPO453775  

129687 (1998 SO8)          Discovered 1998-Sep-20 by Spacewatch at Kitt Peak
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

Alternate Designations
 1998 SO8 = 2002 OT23 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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