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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2008095323812692 4.2845e-08  
a 2.376969914207261 8.879e-09 au
q 1.899651697250956 1.0169e-07 au
i 1.730835242867298 4.5194e-06 deg
node 315.9406317793359 0.00017573 deg
peri 17.69332892053843 0.00017614 deg
M 300.4348812687381 1.3766e-05 deg
tp 2459221.974364972069
(2021-Jan-07.47436497)
5.1819e-05 TDB
period 1338.548014143373
3.66
7.5001e-06
2.053e-08
d
yr
n .2689481409677996 1.507e-09 deg/d
Q 2.854288131163567 1.0662e-08 au
  Orbit Determination Parameters
   # obs. used (total)      431  
   data-arc span      8985 days (24.60 yr)  
   first obs. used      1995-10-24  
   last obs. used      2020-05-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5741  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 01:12:40  

Additional Information
 Earth MOID = .889562 au 
 Jupiter MOID = 2.51396 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 16.5   n/a MPO432532  
rotation period rot_per 4.59 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:
[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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