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52632 (1997 WN21)
Classification: Main-belt Asteroid          SPK-ID: 2052632
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1855910434249292 3.5894e-08  
a 2.604673167687398 1.2483e-08 au
q 2.121269156715378 9.1525e-08 au
i 16.72683286651126 5.1617e-07 deg
node 85.59706586000627 3.1162e-06 deg
peri 283.831681915895 7.7469e-06 deg
M 219.5150925223111 1.2608e-05 deg
tp 2459799.677435820343
(2022-Aug-08.17743582)
5.6493e-05 TDB
period 1535.423845651038
4.20
1.1038e-05
3.022e-08
d
yr
n .2344629471658074 1.6855e-09 deg/d
Q 3.088077178659418 1.48e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1369  
   data-arc span      8556 days (23.43 yr)  
   first obs. used      1997-10-15  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47454  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 06:19:10  

Additional Information
 Earth MOID = 1.19197 au 
 Jupiter MOID = 2.54618 au 
 T_jup = 3.329 
[ 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 13.88   n/a MPCxxxxx  
diameter diameter 9.930 km 3.402 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 400.728 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.]
geometric albedo albedo 0.065   0.074 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

52632 (1997 WN21)          Discovered 1997-Nov-30 by Kobayashi, T. at Oizumi
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 WN21 = 2000 KL56 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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