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347980 (2003 SQ91)
Classification: Main-belt Asteroid          SPK-ID: 2347980
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2674324410856458 6.5068e-08  
a 2.644527155336422 2.514e-08 au
q 1.937294802667523 1.7141e-07 au
i 11.07016315899104 1.0847e-05 deg
node 194.9213634369732 3.7262e-05 deg
peri 265.3178473894621 4.3353e-05 deg
M 253.3439742408878 2.0671e-05 deg
tp 2459465.875343055467
(2021-Sep-08.37534306)
9.3601e-05 TDB
period 1570.798483325774
4.30
2.2399e-05
6.133e-08
d
yr
n .2291828034095053 3.2681e-09 deg/d
Q 3.351759508005319 3.1863e-08 au
  Orbit Determination Parameters
   # obs. used (total)      109  
   data-arc span      5331 days (14.60 yr)  
   first obs. used      2003-09-18  
   last obs. used      2018-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65702  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 06:48:45  

Additional Information
 Earth MOID = .990305 au 
 Jupiter MOID = 1.99861 au 
 T_jup = 3.316 
[ 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 17.1   n/a MPO440563  
rotation period rot_per 1.97 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, M.; Trilling, D.E.; et al. (2018) Ap. J. Suppl. Series 237, A19.]
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]

347980 (2003 SQ91)          Discovered 2003-Sep-18 by NEAT at Palomar
Reference: 20121228/Numbers.arcLast Updated: 2013-01-02

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