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216804 (2006 SD381)
Classification: Main-belt Asteroid          SPK-ID: 2216804
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06946872323187223 6.0774e-08  
a 3.130230856608045 3.9078e-08 au
q 2.912777715578474 1.8052e-07 au
i 15.11189578750651 6.1582e-06 deg
node 128.0790407868774 2.3079e-05 deg
peri 20.90674201970676 5.0454e-05 deg
M 142.1942065657786 4.6177e-05 deg
tp 2458597.508092375884
(2019-Apr-24.00809238)
0.00025492 TDB
period 2022.846736808659
5.54
3.788e-05
1.037e-07
d
yr
n .1779670171987194 3.3326e-09 deg/d
Q 3.347683997637616 4.1793e-08 au
  Orbit Determination Parameters
   # obs. used (total)      246  
   data-arc span      6619 days (18.12 yr)  
   first obs. used      2003-05-30  
   last obs. used      2021-07-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58247  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 22:30:54  

Additional Information
 Earth MOID = 1.93067 au 
 Jupiter MOID = 1.70038 au 
 T_jup = 3.156 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458071.5 (2017-Nov-14.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07101489333952707 6.0771e-08  
q 2.905817661094424 1.8142e-07 au
tp 2458592.369000461345
(2019-Apr-18.86900046)
0.00024944 TDB
node 128.0884497699961 2.3098e-05 deg
peri 19.7025810663641 4.9566e-05 deg
i 15.1086942583973 6.1574e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      246  
   data-arc span      6619 days (18.12 yr)  
   first obs. used      2003-05-30  
   last obs. used      2021-07-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58247  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 22:30:54  

Additional Information
 Jupiter MOID = 1.70038 au 
 T_jup = 3.156 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.693064674042679E-15 -1.082240312989326E-14 1.518975415240011E-12 6.266727791636035E-15 1.164561606749317E-13 -3.321859210177826E-15
q -1.082240312989326E-14 3.291297560148698E-14 -2.234968400580928E-12 -1.432870618409561E-14 -9.169844954695798E-15 1.05382246503936E-14
tp 1.518975415240011E-12 -2.234968400580928E-12 6.2219973641731E-8 -9.798918255727156E-12 1.096453294241377E-8 -3.609481766105475E-11
node 6.266727791636035E-15 -1.432870618409561E-14 -9.798918255727156E-12 5.335391927699766E-10 -5.168988025764065E-10 -5.971439168826864E-12
peri 1.164561606749317E-13 -9.169844954695798E-15 1.096453294241377E-8 -5.168988025764065E-10 2.456825300027209E-9 -5.823687883443471E-13
i -3.321859210177826E-15 1.05382246503936E-14 -3.609481766105475E-11 -5.971439168826864E-12 -5.823687883443471E-13 3.791355169919113E-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 15.80   n/a MPO638141  

216804 (2006 SD381)          Discovered 2006-Sep-27 by Becker, A. C. at Apache Point
Reference: 20090707/Numbers.arcLast Updated: 2009-07-09

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