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216930 (1998 SD69)
Classification: Main-belt Asteroid          SPK-ID: 2216930
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2192747876187961 5.9479e-08  
a 2.199405526586938 1.3745e-08 au
q 1.717131346856981 1.3436e-07 au
i 7.418863513950015 6.0547e-06 deg
node 302.9391379835988 3.9247e-05 deg
peri 2.242063278259029 4.0783e-05 deg
M 326.2300451984448 1.6648e-05 deg
tp 2459312.259480273737
(2021-Apr-07.75948027)
5.5891e-05 TDB
period 1191.396705591452
3.26
1.1168e-05
3.058e-08
d
yr
n .3021663550943621 2.8325e-09 deg/d
Q 2.681679706316896 1.6759e-08 au
  Orbit Determination Parameters
   # obs. used (total)      310  
   data-arc span      7907 days (21.65 yr)  
   first obs. used      1998-08-19  
   last obs. used      2020-04-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56168  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:56:50  

Additional Information
 Earth MOID = .700046 au 
 Jupiter MOID = 2.56772 au 
 T_jup = 3.624 
[ 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 16.89   n/a E2021B55  

216930 (1998 SD69)          Discovered 1998-Sep-19 by LINEAR at Socorro
Reference: 20090806/Numbers.arcLast Updated: 2009-08-09

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