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74209 (1998 RJ60)
Classification: Main-belt Asteroid          SPK-ID: 2074209
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2251372686520515 5.2952e-08  
a 2.627218007521664 1.1189e-08 au
q 2.035733321154752 1.415e-07 au
i 10.20663152235457 6.2993e-06 deg
node 344.6716170810324 2.0019e-05 deg
peri 9.092780973176176 2.3104e-05 deg
M 40.62850393847629 9.1222e-06 deg
tp 2458824.962089277884
(2019-Dec-07.46208928)
3.9162e-05 TDB
period 1555.401792683676
4.26
9.9361e-06
2.72e-08
d
yr
n .2314514498397609 1.4785e-09 deg/d
Q 3.218702693888576 1.3708e-08 au
  Orbit Determination Parameters
   # obs. used (total)      827  
   data-arc span      13963 days (38.23 yr)  
   first obs. used      1981-10-23  
   last obs. used      2020-01-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54671  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:12:45  

Additional Information
 Earth MOID = 1.03106 au 
 Jupiter MOID = 2.22353 au 
 T_jup = 3.343 
[ 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 15.0   n/a MPO502605  

74209 (1998 RJ60)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 RJ60 = 1981 UC13 = 2000 CF90 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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