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JPL Small-Body Database Browser
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11381 (1998 SZ115)
Classification: Main-belt Asteroid          SPK-ID: 2011381
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1108176688065261 4.0025e-08  
a 3.199871828052742 1.9288e-08 au
q 2.84526949158826 1.3142e-07 au
i 4.670331139817822 4.8184e-06 deg
node 225.4146647831705 4.4108e-05 deg
peri 16.37362027042941 4.773e-05 deg
M 339.6863101643911 1.8221e-05 deg
tp 2458718.473270001296
(2019-Aug-22.97327000)
0.00010586 TDB
period 2090.726871590703
5.72
1.8903e-05
5.175e-08
d
yr
n .1721889190270456 1.5569e-09 deg/d
Q 3.554474164517224 2.1425e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1465  
   data-arc span      9816 days (26.87 yr)  
   first obs. used      1992-10-02  
   last obs. used      2019-08-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49312  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 01:09:30  

Additional Information
 Earth MOID = 1.83291 au 
 Jupiter MOID = 1.45615 au 
 T_jup = 3.180 
[ 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-January); 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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