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52630 (1997 WL8)
Classification: Main-belt Asteroid          SPK-ID: 2052630
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03494528092898044 3.7363e-08  
a 2.724590212377579 1.1966e-08 au
q 2.629378641989694 1.0532e-07 au
i 4.930013331879481 3.3669e-06 deg
node 85.08209389877436 4.2815e-05 deg
peri 75.64202677436627 6.5111e-05 deg
M 303.7134955432016 4.9706e-05 deg
tp 2459457.333690911607
(2021-Aug-30.83369091)
0.00022706 TDB
period 1642.669581642692
4.50
1.0821e-05
2.963e-08
d
yr
n .2191554552559469 1.4437e-09 deg/d
Q 2.819801782765464 1.2384e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1542  
   data-arc span      8530 days (23.35 yr)  
   first obs. used      1997-11-02  
   last obs. used      2021-03-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50621  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 10:46:37  

Additional Information
 Earth MOID = 1.64254 au 
 Jupiter MOID = 2.15737 au 
 T_jup = 3.351 
[ 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 14.36   n/a MPCxxxxx  
diameter diameter 3.909 km 0.594 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.265   0.107 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52630 (1997 WL8)          Discovered 1997-Nov-20 by Spacewatch at Kitt Peak
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 WL8 = 1999 FC36 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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