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233991 (1995 WU23)
Classification: Main-belt Asteroid          SPK-ID: 2233991
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05892932623896055 5.8592e-08  
a 2.607394639606745 2.3321e-08 au
q 2.453742630255642 1.5316e-07 au
i 3.172235642521445 6.2556e-06 deg
node 33.00244781823573 0.00011087 deg
peri 104.7656050337284 0.00012276 deg
M 202.6621478710906 4.9966e-05 deg
tp 2459672.608357539378
(2022-Apr-03.10835754)
0.00021292 TDB
period 1537.83088710233
4.21
2.0632e-05
5.649e-08
d
yr
n .2340959614085609 3.1406e-09 deg/d
Q 2.761046648957847 2.4695e-08 au
  Orbit Determination Parameters
   # obs. used (total)      319  
   data-arc span      8208 days (22.47 yr)  
   first obs. used      1995-11-18  
   last obs. used      2018-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5837  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:48:59  

Additional Information
 Earth MOID = 1.46932 au 
 Jupiter MOID = 2.23823 au 
 T_jup = 3.407 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.6   n/a MPO470491  
rotation period rot_per 1.90 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, M.; Trilling, D.E.; et al. (2018) Ap. J. Suppl. Series 237, A19.]
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]

233991 (1995 WU23)          Discovered 1995-Nov-18 by Spacewatch at Kitt Peak
Reference: 20100330/Numbers.arcLast Updated: 2010-04-05
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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