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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1800914767685444 7.1593e-09  
a 2.684064271438801 1.0442e-08 au
q 2.2006871730537 1.6468e-08 au
i 12.03992959195903 2.9435e-07 deg
node 237.8902783640013 1.4847e-06 deg
peri 174.1874210064975 8.7626e-06 deg
M 95.87430463255642 6.822e-06 deg
tp 2458772.752460809518
(2019-Oct-16.25246081)
3.0048e-05 TDB
period 1606.156255304748
4.40
9.3725e-06
2.566e-08
d
yr
n .2241375948392359 1.3079e-09 deg/d
Q 3.167441369823902 1.2322e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1567  
   data-arc span      24550 days (67.21 yr)  
   first obs. used      1954-01-03  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48706  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 06:19:13  

Additional Information
 Earth MOID = 1.21149 au 
 Jupiter MOID = 2.20515 au 
 T_jup = 3.320 
[ 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 13.80   n/a E2021B10  
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. 2020-October); 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

Alternate Designations
 1997 WR28 = 2001 TP153 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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