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413536 (2005 SQ121)
Classification: Main-belt Asteroid          SPK-ID: 2413536
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]

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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04029352838223569 8.8118e-08  
a 2.688883428419193 2.9631e-08 au
q 2.580538827679661 2.4766e-07 au
i 5.265281541232291 6.4446e-06 deg
node 222.709464377009 7.7577e-05 deg
peri 122.8281223570665 0.00010607 deg
M 138.9116047621362 7.0688e-05 deg
tp 2458379.069712156145
(2018-Sep-17.56971216)
0.00031592 TDB
period 1610.483904543927
4.41
2.6621e-05
7.288e-08
d
yr
n .2235352982940543 3.695e-09 deg/d
Q 2.797228029158725 3.0825e-08 au
  Orbit Determination Parameters
   # obs. used (total)      214  
   data-arc span      5223 days (14.30 yr)  
   first obs. used      2005-09-01  
   last obs. used      2019-12-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52985  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 13:26:40  

Additional Information
 Earth MOID = 1.57817 au 
 Jupiter MOID = 2.35787 au 
 T_jup = 3.366 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457330.5 (2015-Nov-04.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04037930754420264 8.8864e-08  
q 2.579759231055973 2.4948e-07 au
tp 2456755.782873121813
(2014-Apr-08.28287312)
0.0003127 TDB
node 222.8025304616572 7.7763e-05 deg
peri 119.9302184952013 0.00010548 deg
i 5.258177742700531 6.4399e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      214  
   data-arc span      5223 days (14.30 yr)  
   first obs. used      2005-09-01  
   last obs. used      2019-12-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52985  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 13:26:40  

Additional Information
 Jupiter MOID = 2.35787 au 
 T_jup = 3.366 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.896731208673335E-15 -2.204186800489004E-14 -1.219102344470739E-12 -9.622304588304815E-14 -5.080975710704953E-13 -9.993960702852018E-16
q -2.204186800489004E-14 6.224242274663494E-14 2.577144218084927E-12 2.738388931430405E-13 1.279716688508526E-12 3.587697692027092E-15
tp -1.219102344470739E-12 2.577144218084927E-12 9.778405120870738E-8 5.242075907221154E-11 2.233040010278349E-8 -1.089803722884476E-11
node -9.622304588304815E-14 2.738388931430405E-13 5.242075907221154E-11 6.04705244973062E-9 -6.005247620244433E-9 -1.811294813812216E-10
peri -5.080975710704953E-13 1.279716688508526E-12 2.233040010278349E-8 -6.005247620244433E-9 1.112504931223812E-8 1.779524077364967E-10
i -9.993960702852018E-16 3.587697692027092E-15 -1.089803722884476E-11 -1.811294813812216E-10 1.779524077364967E-10 4.147282699355386E-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 16.7   n/a MPO460570  

413536 (2005 SQ121)          Discovered 2005-Sep-29 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-11-10
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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