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79653 (1998 SW21)
Classification: Main-belt Asteroid          SPK-ID: 2079653
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1993708991001688 5.2768e-08  
a 2.430691069101034 1.0363e-08 au
q 1.94608200521961 1.305e-07 au
i 7.823154296669694 6.8434e-06 deg
node 353.4292801674986 3.0728e-05 deg
peri 35.49104331352558 3.5159e-05 deg
M 289.6788348033104 1.5629e-05 deg
tp 2459470.881287839005
(2021-Sep-13.38128784)
6.085e-05 TDB
period 1384.181609474012
3.79
8.8516e-06
2.423e-08
d
yr
n .2600814788579656 1.6632e-09 deg/d
Q 2.915300132982458 1.2429e-08 au
  Orbit Determination Parameters
   # obs. used (total)      718  
   data-arc span      7590 days (20.78 yr)  
   first obs. used      1998-08-23  
   last obs. used      2019-06-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57709  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:42:59  

Additional Information
 Earth MOID = .954851 au 
 Jupiter MOID = 2.56902 au 
 T_jup = 3.468 
[ 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 15.67   n/a MPCxxxxx  

79653 (1998 SW21)          Discovered 1998-Sep-22 by Visnjan at Visnjan
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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