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74181 (1998 RB28)
Classification: Main-belt Asteroid          SPK-ID: 2074181
[ 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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09676218426690129 3.9879e-08  
a 2.605292546624526 1.5192e-08 au
q 2.353198749158859 1.0648e-07 au
i 14.33247348111882 9.1752e-06 deg
node 338.4346911646887 1.4618e-05 deg
peri 78.39989003889566 5.5207e-05 deg
M 359.2505196270995 5.0371e-05 deg
tp 2459003.697723700813
(2020-Jun-03.19772370)		 0.00021491 TDB
period 1535.971552980784
4.21		 1.3435e-05
3.678e-08		 d
yr
n .2343793407510483 2.0501e-09 deg/d
Q 2.857386344090194 1.6662e-08 au
   Orbit Determination Parameters
   # obs. used (total)      737  
   data-arc span      7763 days (21.25 yr)  
   first obs. used      1998-08-17  
   last obs. used      2019-11-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57162  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 07:24:43  

Additional Information
 Earth MOID = 1.41067 au 
 Jupiter MOID = 2.44218 au 
 T_jup = 3.362 
[ 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 15.1   n/a MPO453154  

74181 (1998 RB28)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 RB28 = 2000 AR247 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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