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100943 (1998 OH4)
Classification: Main-belt Asteroid          SPK-ID: 2100943
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .147931178785695 4.7686e-08  
a 2.425793238296927 1.0116e-08 au
q 2.066942785065295 1.1794e-07 au
i 6.736142194575754 4.1732e-06 deg
node 152.7742988515924 3.2417e-05 deg
peri 191.4179871435899 3.4844e-05 deg
M 308.3962744547366 1.3058e-05 deg
tp 2459398.314286816434
(2021-Jul-02.81428682)
5.057e-05 TDB
period 1380.000038785046
3.78
8.632e-06
2.363e-08
d
yr
n .2608695578856248 1.6318e-09 deg/d
Q 2.78464369152856 1.1612e-08 au
  Orbit Determination Parameters
   # obs. used (total)      579  
   data-arc span      8076 days (22.11 yr)  
   first obs. used      1998-07-27  
   last obs. used      2020-09-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57306  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:03:21  

Additional Information
 Earth MOID = 1.05768 au 
 Jupiter MOID = 2.61239 au 
 T_jup = 3.486 
[ 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 16.18   n/a E2021B55  

100943 (1998 OH4)          Discovered 1998-Jul-27 by ODAS at Caussols
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 OH4 = 2002 RU49 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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