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216416 (2008 SD92)
Classification: Main-belt Asteroid          SPK-ID: 2216416
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2111911766788869 6.4244e-08  
a 2.636772836126488 2.275e-08 au
q 2.079909678230009 1.8069e-07 au
i 1.445713508602946 6.1333e-06 deg
node 335.8219869052565 0.00029212 deg
peri 345.0028869366479 0.00029273 deg
M 27.95641632538381 2.1868e-05 deg
tp 2459275.053081623214
(2021-Mar-01.55308162)
9.4212e-05 TDB
period 1563.894674724285
4.28
2.0239e-05
5.541e-08
d
yr
n .2301945302444796 2.9791e-09 deg/d
Q 3.193635994022967 2.7554e-08 au
  Orbit Determination Parameters
   # obs. used (total)      205  
   data-arc span      9443 days (25.85 yr)  
   first obs. used      1995-09-01  
   last obs. used      2021-07-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60639  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 22:30:50  

Additional Information
 Earth MOID = 1.06652 au 
 Jupiter MOID = 2.12802 au 
 T_jup = 3.365 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457702.5 (2016-Nov-10.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2103889701215748 6.4332e-08  
q 2.082391940344098 1.8053e-07 au
tp 2457712.181862997559
(2016-Nov-19.68186300)
8.7035e-05 TDB
node 335.8626714457644 0.00029226 deg
peri 345.260702290677 0.00029288 deg
i 1.445283490331918 6.1303e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      205  
   data-arc span      9443 days (25.85 yr)  
   first obs. used      1995-09-01  
   last obs. used      2021-07-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60639  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 22:30:50  

Additional Information
 Jupiter MOID = 2.12802 au 
 T_jup = 3.365 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.138669044921373E-15 -1.157818894139058E-14 -5.369931918784113E-13 1.888971355572924E-14 5.976666290837186E-14 -3.759524563792797E-16
q -1.157818894139058E-14 3.259138979150799E-14 1.858328019922868E-12 -5.948289098008922E-14 -8.424637872640505E-14 1.308577275642053E-15
tp -5.369931918784113E-13 1.858328019922868E-12 7.5750444386872E-9 -2.111323188347324E-11 1.708572792473138E-9 3.322045489931188E-12
node 1.888971355572924E-14 -5.948289098008922E-14 -2.111323188347324E-11 8.541866091042175E-8 -8.539643996408509E-8 6.188790162213886E-10
peri 5.976666290837186E-14 -8.424637872640505E-14 1.708572792473138E-9 -8.539643996408509E-8 8.577982593128222E-8 -6.179786120862138E-10
i -3.759524563792797E-16 1.308577275642053E-15 3.322045489931188E-12 6.188790162213886E-10 -6.179786120862138E-10 3.758117797826714E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.77   n/a E2021B55  

216416 (2008 SD92)          Discovered 2008-Sep-21 by Spacewatch at Kitt Peak
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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