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58149 (1987 SX11)
Classification: Mars-crossing Asteroid          SPK-ID: 2058149
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3801255721419959 5.7584e-08  
a 2.664996853718488 1.7157e-08 au
q 1.651963399942129 1.4757e-07 au
i 26.13273566369749 7.2142e-06 deg
node 172.9200490063635 1.0383e-05 deg
peri 236.8971410223816 1.3969e-05 deg
M 159.2589761108297 1.3321e-05 deg
tp 2458297.516880878451
(2018-Jun-28.01688088)
5.3928e-05 TDB
period 1589.071643331684
4.35
1.5345e-05
4.201e-08
d
yr
n .2265473690319058 2.1877e-09 deg/d
Q 3.678030307494847 2.3678e-08 au
  Orbit Determination Parameters
   # obs. used (total)      586  
   data-arc span      11997 days (32.85 yr)  
   first obs. used      1987-09-16  
   last obs. used      2020-07-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54221  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:52:09  

Additional Information
 Earth MOID = .762448 au 
 Jupiter MOID = 2.18571 au 
 T_jup = 3.141 
[ 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 15.1   n/a MPO468480  
rotation period rot_per 5.35378 h n/a LCDB (Rev. 2020-October); 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]

58149 (1987 SX11)          Discovered 1987-Sep-26 by Debehogne, H. at La Silla
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1987 SX11 = 2000 PS25 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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