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100945 (1998 OE8)
Classification: Main-belt Asteroid          SPK-ID: 2100945
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1199094745897667 4.9437e-08  
a 2.248763934845091 1.3361e-08 au
q 1.9791158329414 1.0989e-07 au
i 5.25715871983668 5.9482e-06 deg
node 313.8222979006422 5.4377e-05 deg
peri 330.3438939949539 6.2001e-05 deg
M 196.9074397901396 3.2501e-05 deg
tp 2459558.515005576067
(2021-Dec-10.01500558)
0.0001126 TDB
period 1231.726338398842
3.37
1.0977e-05
3.005e-08
d
yr
n .2922727141387386 2.6047e-09 deg/d
Q 2.518412036748782 1.4963e-08 au
  Orbit Determination Parameters
   # obs. used (total)      584  
   data-arc span      7832 days (21.44 yr)  
   first obs. used      1998-07-26  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60177  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 14:59:28  

Additional Information
 Earth MOID = .964721 au 
 Jupiter MOID = 2.61942 au 
 T_jup = 3.614 
[ 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 16.1   n/a MPO400920  

100945 (1998 OE8)          Discovered 1998-Jul-26 by Elst, E. W. at La Silla
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1998 OE8 = 2002 XD21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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