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21116 (1992 SO)
Classification: Main-belt Asteroid          SPK-ID: 2021116
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1642439310037223 3.4277e-08  
a 2.319386090734563 5.5524e-09 au
q 1.938441001676963 8.0325e-08 au
i 5.758998964000405 2.4263e-06 deg
node 244.1779383265012 3.5596e-05 deg
peri 79.38649869512913 3.6673e-05 deg
M 34.9146541224253 7.6924e-06 deg
tp 2459075.369481887438
(2020-Aug-13.86948189)
2.7614e-05 TDB
period 1290.20285759008
3.53
4.633e-06
1.268e-08
d
yr
n .2790258895197535 1.0019e-09 deg/d
Q 2.700331179792164 6.4644e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2343  
   data-arc span      10336 days (28.30 yr)  
   first obs. used      1992-09-26  
   last obs. used      2021-01-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44915  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:51:00  

Additional Information
 Earth MOID = .934277 au 
 Jupiter MOID = 2.62056 au 
 T_jup = 3.554 
[ 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 14.44   n/a E2021B10  
rotation period rot_per 69.3549 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.]

21116 (1992 SO)          Discovered 1992-Sep-26 by Sugie, A. at Dynic
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1992 SO = 1998 FZ105 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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