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74293 (1998 SF140)
Classification: Main-belt Asteroid          SPK-ID: 2074293
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1873374271888405 4.4246e-08  
a 2.655878713898048 1.5699e-08 au
q 2.158333228710781 1.2055e-07 au
i 3.392356038383527 4.1099e-06 deg
node 262.555582460273 9.7133e-05 deg
peri 124.3873102640224 9.8203e-05 deg
M 357.6107710519377 1.5478e-05 deg
tp 2459010.992187703971
(2020-Jun-10.49218770)
6.8013e-05 TDB
period 1580.92324157255
4.33
1.4017e-05
3.838e-08
d
yr
n .2277150405113323 2.019e-09 deg/d
Q 3.153424199085315 1.864e-08 au
  Orbit Determination Parameters
   # obs. used (total)      529  
   data-arc span      10529 days (28.83 yr)  
   first obs. used      1991-01-19  
   last obs. used      2019-11-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53684  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:14:00  

Additional Information
 Earth MOID = 1.16515 au 
 Jupiter MOID = 2.30936 au 
 T_jup = 3.360 
[ 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 15.6   n/a MPO439561  

74293 (1998 SF140)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 SF140 = 2002 QM2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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