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79682 (1998 SD55)
Classification: Main-belt Asteroid          SPK-ID: 2079682
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1944320495387585 4.1809e-08  
a 2.445250088308229 1.0254e-08 au
q 1.96981510200363 1.0336e-07 au
i 2.397392499812117 5.6965e-06 deg
node 182.8845629769167 0.00012012 deg
peri 217.2158586467435 0.00012169 deg
M 214.1367094780846 2.0147e-05 deg
tp 2459566.383274026503
(2021-Dec-17.88327403)
8.0575e-05 TDB
period 1396.636384114297
3.82
8.7848e-06
2.405e-08
d
yr
n .2577621520495477 1.6213e-09 deg/d
Q 2.920685074612829 1.2247e-08 au
  Orbit Determination Parameters
   # obs. used (total)      520  
   data-arc span      7502 days (20.54 yr)  
   first obs. used      1998-09-16  
   last obs. used      2019-04-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63107  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:25:16  

Additional Information
 Earth MOID = .978399 au 
 Jupiter MOID = 2.49241 au 
 T_jup = 3.472 
[ 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 16.4   n/a MPO468753  

79682 (1998 SD55)          Discovered 1998-Sep-16 by LONEOS at Anderson Mesa
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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