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351517 (2005 ST74)
Classification: Outer Main-belt Asteroid          SPK-ID: 2351517
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02730712312426981 4.3804e-08  
a 3.241810961022451 3.7601e-08 au
q 3.153286429964204 1.3673e-07 au
i 5.419375832612668 8.1297e-06 deg
node 1.122202736160297 5.0938e-05 deg
peri 104.2790614122483 0.00018584 deg
M 156.4441351730752 0.00017631 deg
tp 2458470.018519870444
(2018-Dec-17.51851987)
0.0010431 TDB
period 2131.96443879248
5.84
3.7092e-05
1.016e-07
d
yr
n .1688583512227342 2.9378e-09 deg/d
Q 3.330335492080699 3.8628e-08 au
  Orbit Determination Parameters
   # obs. used (total)      198  
   data-arc span      7562 days (20.70 yr)  
   first obs. used      1999-09-06  
   last obs. used      2020-05-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53881  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 08:58:33  

Additional Information
 Earth MOID = 2.17629 au 
 Jupiter MOID = 1.693 au 
 T_jup = 3.176 
[ 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 15.98   n/a E2021B25  

351517 (2005 ST74)          Discovered 2005-Sep-24 by Spacewatch at Kitt Peak
Reference: 20130127/Numbers.arcLast Updated: 2013-01-31

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