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47300 (1999 WN4)
Classification: Main-belt Asteroid          SPK-ID: 2047300
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2153306269786082 4.0272e-08  
a 2.315342452059195 5.4816e-09 au
q 1.816778310187101 9.4568e-08 au
i 3.968784354164034 2.8577e-06 deg
node 299.0263536943809 5.9556e-05 deg
peri 107.4805044488622 6.0014e-05 deg
M 310.7430068814161 6.7832e-06 deg
tp 2459176.570531419829
(2020-Nov-23.07053142)
2.435e-05 TDB
period 1286.830301608974
3.52
4.5699e-06
1.251e-08
d
yr
n .2797571673202581 9.935e-10 deg/d
Q 2.81390659393129 6.662e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1560  
   data-arc span      11195 days (30.65 yr)  
   first obs. used      1990-03-04  
   last obs. used      2020-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48918  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:42:58  

Additional Information
 Earth MOID = .831281 au 
 Jupiter MOID = 2.59125 au 
 T_jup = 3.547 
[ 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 15.2   n/a MPO296487  
diameter diameter 5.481 km 1.250 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
geometric albedo albedo 0.049   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

47300 (1999 WN4)          Discovered 1999-Nov-28 by Kobayashi, T. at Oizumi
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 WN4 = 1990 EV9 = 2002 NH14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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