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120718 (1997 SF8)
Classification: Main-belt Asteroid          SPK-ID: 2120718
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1436262782069601 4.3928e-08  
a 2.285095241374455 1.0101e-08 au
q 1.956895516507407 1.0388e-07 au
i 6.034615931730137 4.745e-06 deg
node 349.9545527337227 3.1004e-05 deg
peri 331.5544850223546 3.3218e-05 deg
M 300.222599681231 1.3782e-05 deg
tp 2459410.002596050039
(2021-Jul-14.50259605)
4.9077e-05 TDB
period 1261.696463476569
3.45
8.3657e-06
2.29e-08
d
yr
n .2853301173628006 1.8919e-09 deg/d
Q 2.613294966241503 1.1552e-08 au
  Orbit Determination Parameters
   # obs. used (total)      670  
   data-arc span      10829 days (29.65 yr)  
   first obs. used      1990-09-28  
   last obs. used      2020-05-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51788  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:55:18  

Additional Information
 Earth MOID = .945125 au 
 Jupiter MOID = 2.69121 au 
 T_jup = 3.581 
[ 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 15.99   n/a E2021B55  

120718 (1997 SF8)          Discovered 1997-Sep-23 by Spacewatch at Kitt Peak
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

Alternate Designations
 1997 SF8 = 2002 AK132 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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