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52634 (1997 WR28)
Classification: Main-belt Asteroid          SPK-ID: 2052634
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1799987025750041 3.7088e-08  
a 2.684280929274756 1.1409e-08 au
q 2.201113844658474 9.7581e-08 au
i 12.04002544533706 4.2011e-06 deg
node 237.8980268944205 1.761e-05 deg
peri 174.2156390715699 2.2375e-05 deg
M 51.02537627476437 1.117e-05 deg
tp 2458772.820415085253
(2019-Oct-16.32041509)
5.0071e-05 TDB
period 1606.350732779334
4.40
1.0241e-05
2.804e-08
d
yr
n .2241104589762425 1.4288e-09 deg/d
Q 3.167448013891039 1.3462e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1340  
   data-arc span      24136 days (66.08 yr)  
   first obs. used      1954-01-03  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49621  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 10:32:05  

Additional Information
 Earth MOID = 1.21271 au 
 Jupiter MOID = 2.20415 au 
 T_jup = 3.320 
[ 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 13.7   n/a MPO351205  
diameter diameter 8.409 km 0.085 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.351 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.084   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52634 (1997 WR28)          Discovered 1997-Nov-24 by Ueda, S., Kaneda, H. at Kushiro
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 WR28 = 2001 TP153 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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