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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1478783448874138 4.7776e-08  
a 2.424994050653924 1.0153e-08 au
q 2.066389944081397 1.1805e-07 au
i 6.735853390596501 4.1926e-06 deg
node 152.7831526018025 3.2432e-05 deg
peri 191.5369359152318 3.4859e-05 deg
M 256.0777910969155 1.2937e-05 deg
tp 2459398.671628652292
(2021-Jul-03.17162865)
5.0579e-05 TDB
period 1379.318124853392
3.78
8.6622e-06
2.372e-08
d
yr
n .2609985278329208 1.6391e-09 deg/d
Q 2.783598157226452 1.1654e-08 au
  Orbit Determination Parameters
   # obs. used (total)      577  
   data-arc span      8001 days (21.91 yr)  
   first obs. used      1998-07-27  
   last obs. used      2020-06-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57114  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 09:04:52  

Additional Information
 Earth MOID = 1.059 au 
 Jupiter MOID = 2.61361 au 
 T_jup = 3.487 
[ 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 16.1   n/a MPO267995  

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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