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74247 (1998 SR64)
Classification: Main-belt Asteroid          SPK-ID: 2074247
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0368945100677003 5.2742e-08  
a 2.746435574495244 1.5522e-08 au
q 2.645107179541739 1.5261e-07 au
i 6.473270233885407 4.373e-06 deg
node 154.1256173839677 2.9913e-05 deg
peri 196.6986353223323 5.7396e-05 deg
M 305.4149834002379 4.9196e-05 deg
tp 2459252.571355393265
(2021-Feb-07.07135539)
0.0002272 TDB
period 1662.465152423728
4.55
1.4093e-05
3.858e-08
d
yr
n .2165458923906776 1.8358e-09 deg/d
Q 2.847763969448749 1.6094e-08 au
  Orbit Determination Parameters
   # obs. used (total)      726  
   data-arc span      8066 days (22.08 yr)  
   first obs. used      1998-09-20  
   last obs. used      2020-10-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58358  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:44:25  

Additional Information
 Earth MOID = 1.63852 au 
 Jupiter MOID = 2.30884 au 
 T_jup = 3.337 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.2   n/a MPO344827  

74247 (1998 SR64)          Discovered 1998-Sep-20 by Elst, E. W. at La Silla
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 SR64 = 1998 UN41 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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