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74218 (1998 RW73)
Classification: Main-belt Asteroid          SPK-ID: 2074218
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08297976172186221 3.9186e-08  
a 2.45890479041469 1.0001e-08 au
q 2.254865456809334 9.6266e-08 au
i 4.092622386216373 4.1361e-06 deg
node 298.4968065303921 6.121e-05 deg
peri 203.5859118277146 6.6536e-05 deg
M 100.0691738627824 2.7266e-05 deg
tp 2458609.020693701810
(2019-May-05.52069370)
0.00010603 TDB
period 1408.35129168348
3.86
8.5925e-06
2.352e-08
d
yr
n .2556180422639242 1.5596e-09 deg/d
Q 2.662944124020047 1.0831e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1366  
   data-arc span      14290 days (39.12 yr)  
   first obs. used      1981-05-03  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53205  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:48:59  

Additional Information
 Earth MOID = 1.26838 au 
 Jupiter MOID = 2.35114 au 
 T_jup = 3.483 
[ 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 14.7   n/a MPO459335  

74218 (1998 RW73)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 RW73 = 1981 JV1 = 1999 YG16 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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