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43906 (1995 WK4)
Classification: Main-belt Asteroid          SPK-ID: 2043906
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1762713631211893 3.5399e-08  
a 2.4276018732424 8.7082e-09 au
q 1.99968518193041 8.48e-08 au
i 3.292228953021768 3.6722e-06 deg
node 106.7108080358284 6.6055e-05 deg
peri 292.1493295743569 6.7042e-05 deg
M 244.7228198984646 1.4023e-05 deg
tp 2459642.890167950952
(2022-Mar-04.39016795)
5.5433e-05 TDB
period 1381.543687328812
3.78
7.4337e-06
2.035e-08
d
yr
n .2605780789285448 1.4021e-09 deg/d
Q 2.855518564554391 1.0243e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1138  
   data-arc span      9056 days (24.79 yr)  
   first obs. used      1995-11-20  
   last obs. used      2020-09-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52366  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:23:51  

Additional Information
 Earth MOID = 1.00923 au 
 Jupiter MOID = 2.55927 au 
 T_jup = 3.486 
[ 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 15.48   n/a MPCxxxxx  
diameter diameter 2.095 km 0.304 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.305   0.143 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

43906 (1995 WK4)          Discovered 1995-Nov-20 by Kobayashi, T. at Oizumi
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1995 WK4 = 1999 XP 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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