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79695 (1998 SA66)
Classification: Main-belt Asteroid          SPK-ID: 2079695
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2343468502480259 3.1385e-08  
a 2.318425160412233 6.8927e-09 au
q 1.775109526533852 7.2776e-08 au
i 4.198529769714776 3.7578e-06 deg
node 133.92103229869 5.4835e-05 deg
peri 173.7742147890338 5.5717e-05 deg
M 98.07487428869747 9.153e-06 deg
tp 2458649.228182211053
(2019-Jun-14.72818221)
3.2882e-05 TDB
period 1289.401136847486
3.53
5.7501e-06
1.574e-08
d
yr
n .2791993815673065 1.2451e-09 deg/d
Q 2.861740794290614 8.508e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1028  
   data-arc span      7800 days (21.36 yr)  
   first obs. used      1998-09-18  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54822  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 18:45:26  

Additional Information
 Earth MOID = .760426 au 
 Jupiter MOID = 2.40568 au 
 T_jup = 3.539 
[ 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 15.7   n/a MPO502636  
rotation period rot_per 55.235 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

79695 (1998 SA66)          Discovered 1998-Sep-20 by Elst, E. W. at La Silla
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

[ show close-approach data ]
Alternate Designations
 1998 SA66 = 2000 AB1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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