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259487 (2003 SZ221)
Classification: Main-belt Asteroid          SPK-ID: 2259487
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2054097630558047 5.1933e-08  
a 2.203782371808156 9.8389e-09 au
q 1.751103956988483 1.1602e-07 au
i 3.780203273374322 6.3639e-06 deg
node 203.3562939988059 6.285e-05 deg
peri 159.9001598823428 6.4018e-05 deg
M 39.20936986839734 1.163e-05 deg
tp 2458870.351596188705
(2020-Jan-21.85159619)
3.8288e-05 TDB
period 1194.954816395305
3.27
8.0024e-06
2.191e-08
d
yr
n .3012666211815223 2.0175e-09 deg/d
Q 2.656460786627828 1.186e-08 au
  Orbit Determination Parameters
   # obs. used (total)      399  
   data-arc span      6795 days (18.60 yr)  
   first obs. used      2002-04-09  
   last obs. used      2020-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56747  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 00:16:47  

Additional Information
 Earth MOID = .74948 au 
 Jupiter MOID = 2.80628 au 
 T_jup = 3.632 
[ 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 16.9   n/a MPO437205  
rotation period rot_per 2.75 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]

259487 (2003 SZ221)          Discovered 2003-Sep-26 by LINEAR at Socorro
Reference: 20110119/Numbers.arcLast Updated: 2011-01-25

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