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100391 (1995 WO17)
Classification: Main-belt Asteroid          SPK-ID: 2100391
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2007135022389524 3.9325e-08  
a 2.3771715870499 8.6148e-09 au
q 1.900041152390186 9.4198e-08 au
i 1.73090269574996 4.2839e-06 deg
node 315.9374718026394 0.00016546 deg
peri 17.60848676291367 0.00016587 deg
M 354.2793330731553 1.2967e-05 deg
tp 2459221.773227516853
(2021-Jan-07.27322752)
4.8273e-05 TDB
period 1338.718370428013
3.67
7.2772e-06
1.992e-08
d
yr
n .2689139164385272 1.4618e-09 deg/d
Q 2.854302021709613 1.0344e-08 au
  Orbit Determination Parameters
   # obs. used (total)      439  
   data-arc span      9063 days (24.81 yr)  
   first obs. used      1995-10-24  
   last obs. used      2020-08-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57072  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:06:27  

Additional Information
 Earth MOID = .888024 au 
 Jupiter MOID = 2.51368 au 
 T_jup = 3.513 
[ 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 16.56   n/a E2021B55  
rotation period rot_per 4.59 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:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]

100391 (1995 WO17)          Discovered 1995-Nov-17 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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