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74202 (1998 RL56)
Classification: Main-belt Asteroid          SPK-ID: 2074202
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08935009409670862 5.3866e-08  
a 2.466629472786994 1.4352e-08 au
q 2.246235897291762 1.4035e-07 au
i 11.38318122063025 5.613e-06 deg
node 348.4609659381773 2.1898e-05 deg
peri 328.8176423304978 3.6564e-05 deg
M 251.7358554858133 3.0906e-05 deg
tp 2459426.036139430251
(2021-Jul-30.53613943)
0.00012171 TDB
period 1414.993032848621
3.87
1.235e-05
3.381e-08
d
yr
n .2544182138305366 2.2205e-09 deg/d
Q 2.687023048282227 1.5635e-08 au
  Orbit Determination Parameters
   # obs. used (total)      859  
   data-arc span      9366 days (25.64 yr)  
   first obs. used      1994-09-05  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55602  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:03:37  

Additional Information
 Earth MOID = 1.24168 au 
 Jupiter MOID = 2.62917 au 
 T_jup = 3.454 
[ 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 14.9   n/a MPO366100  

74202 (1998 RL56)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 RL56 = 1994 RT20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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