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13960 (1991 GF8)
Classification: Main-belt Asteroid          SPK-ID: 2013960
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1177609031446499 3.9669e-08  
a 2.776370753177442 1.4302e-08 au
q 2.449422825818875 1.0951e-07 au
i 9.078091158001964 4.4618e-06 deg
node 7.616056915436169 2.7283e-05 deg
peri 106.9106290266935 3.3242e-05 deg
M 188.8215017221507 1.8319e-05 deg
tp 2459803.954577485807
(2022-Aug-12.45457749)
8.6563e-05 TDB
period 1689.719508027247
4.63
1.3056e-05
3.575e-08
d
yr
n .2130531122412745 1.6463e-09 deg/d
Q 3.10331868053601 1.5986e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1904  
   data-arc span      10707 days (29.31 yr)  
   first obs. used      1991-04-08  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41779  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 00:48:00  

Additional Information
 Earth MOID = 1.48405 au 
 Jupiter MOID = 2.00937 au 
 T_jup = 3.307 
[ 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 13.7   n/a MPO344416  

13960 (1991 GF8)          Discovered 1991-Apr-08 by Elst, E. W. at La Silla
Reference: 20000320/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1991 GF8 = 1999 AF23 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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