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52629 (1997 WA8)
Classification: Main-belt Asteroid          SPK-ID: 2052629
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2224940534685675 2.6563e-08  
a 2.717359753623872 1.0182e-08 au
q 2.112763367307749 7.2456e-08 au
i 2.744098957322017 3.7079e-06 deg
node 65.63217099183126 9.5288e-05 deg
peri 39.05848531402656 9.5978e-05 deg
M 31.25950897485717 1.1461e-05 deg
tp 2459058.431175778183
(2020-Jul-27.93117578)
5.177e-05 TDB
period 1636.135000104806
4.48
9.1957e-06
2.518e-08
d
yr
n .2200307431703004 1.2366e-09 deg/d
Q 3.321956139939996 1.2447e-08 au
  Orbit Determination Parameters
   # obs. used (total)      900  
   data-arc span      9906 days (27.12 yr)  
   first obs. used      1994-02-08  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54967  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 06:19:09  

Additional Information
 Earth MOID = 1.1303 au 
 Jupiter MOID = 1.83529 au 
 T_jup = 3.322 
[ 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 15.32   n/a MPCxxxxx  
diameter diameter 5.618 km 0.180 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.051   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52629 (1997 WA8)          Discovered 1997-Nov-23 by Sato, N. at Chichibu
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 WA8 = 1994 CK16 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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