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11381 (1998 SZ115)
Classification: Outer Main-belt Asteroid          SPK-ID: 2011381
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1121213388934438 3.3751e-08  
a 3.202897197747914 1.8304e-08 au
q 2.843784075598359 1.0827e-07 au
i 4.664081555450057 4.1236e-06 deg
node 225.3287023956838 4.3678e-05 deg
peri 15.94934568568664 4.7146e-05 deg
M 48.88247000928531 1.7128e-05 deg
tp 2458716.208701046969
(2019-Aug-20.70870105)
9.9709e-05 TDB
period 2093.692638764991
5.73
1.7947e-05
4.914e-08
d
yr
n .1719450091835608 1.4739e-09 deg/d
Q 3.562010319897469 2.0356e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1634  
   data-arc span      10170 days (27.84 yr)  
   first obs. used      1992-10-02  
   last obs. used      2020-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4749  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 00:23:56  

Additional Information
 Earth MOID = 1.83162 au 
 Jupiter MOID = 1.44759 au 
 T_jup = 3.179 
[ 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 13.2   n/a MPO347616  
rotation period rot_per 3.054 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

11381 (1998 SZ115)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 19990831/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 SZ115 = 1996 FH16 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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