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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 | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2111911736269006 6.5491e-08  
a 2.636772837233588 2.3203e-08 au
q 2.079909687150694 1.8447e-07 au
i 1.445713374818553 6.1338e-06 deg
node 335.8220249626615 0.00029294 deg
peri 345.0028492820166 0.00029355 deg
M 27.95641546777288 2.2145e-05 deg
tp 2459275.053085272319
(2021-Mar-01.55308527)
9.5374e-05 TDB
period 1563.894675709232
4.28
2.0643e-05
5.652e-08
d
yr
n .2301945300995022 3.0385e-09 deg/d
Q 3.193635987316482 2.8103e-08 au
  Orbit Determination Parameters
   # obs. used (total)      201  
   data-arc span      9054 days (24.79 yr)  
   first obs. used      1995-09-01  
   last obs. used      2020-06-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59976  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:54:43  

Additional Information
 Earth MOID = 1.06652 au 
 Jupiter MOID = 2.12802 au 
 T_jup = 3.365 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457685.5 (2016-Oct-24.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2103792652143019 6.5581e-08  
q 2.082392129789495 1.8429e-07 au
tp 2457712.181609303395
(2016-Nov-19.68160930)
8.7735e-05 TDB
node 335.8625983951454 0.00029309 deg
peri 345.2606560545868 0.00029371 deg
i 1.445290463801496 6.1308e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      201  
   data-arc span      9054 days (24.79 yr)  
   first obs. used      1995-09-01  
   last obs. used      2020-06-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59976  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:54:43  

Additional Information
 Jupiter MOID = 2.12802 au 
 T_jup = 3.365 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.300848014432221E-15 -1.204986195968922E-14 -6.776003181605148E-13 1.962377722913591E-14 3.867481977145289E-14 -4.514042556717291E-16
q -1.204986195968922E-14 3.396320145943188E-14 2.267399488362554E-12 -6.162129165904177E-14 -2.287330317249383E-14 1.527738500775641E-15
tp -6.776003181605148E-13 2.267399488362554E-12 7.697471935311832E-9 -2.091840692740967E-11 1.726166671414436E-9 3.384441792921449E-12
node 1.962377722913591E-14 -6.162129165904177E-14 -2.091840692740967E-11 8.590033047604401E-8 -8.587787654576856E-8 6.171576051120373E-10
peri 3.867481977145289E-14 -2.287330317249383E-14 1.726166671414436E-9 -8.587787654576856E-8 8.626362185886115E-8 -6.162488708834986E-10
i -4.514042556717291E-16 1.527738500775641E-15 3.384441792921449E-12 6.171576051120373E-10 -6.162488708834986E-10 3.758731649190404E-11

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 16.77   n/a E2021B55  

216416 (2008 SD92)          Discovered 2008-Sep-21 by Spacewatch at Kitt Peak
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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