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JPL Small-Body Database Browser
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39181 (2000 WP161)
Classification: Main-belt Asteroid          SPK-ID: 2039181
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1859409955408265 4.3139e-08  
a 2.744503174387723 1.477e-08 au
q 2.234187521877111 1.179e-07 au
i 10.11763055552129 4.1435e-06 deg
node 127.8383810735828 2.8018e-05 deg
peri 232.821710811021 3.0254e-05 deg
M 62.92999530325664 1.1136e-05 deg
tp 2458310.198532260059
(2018-Jul-10.69853226)
5.1376e-05 TDB
period 1660.710888071058
4.55
1.3406e-05
3.67e-08
d
yr
n .2167746370460338 1.7499e-09 deg/d
Q 3.254818826898335 1.7517e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1009  
   data-arc span      8077 days (22.11 yr)  
   first obs. used      1996-12-07  
   last obs. used      2019-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53301  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:05:26  

Additional Information
 Earth MOID = 1.24556 au 
 Jupiter MOID = 2.22624 au 
 T_jup = 3.301 
[ 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 14.5   n/a MPO452713  
diameter diameter 3.150 km 0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.339   0.063 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39181 (2000 WP161)          Discovered 2000-Nov-20 by LONEOS at Anderson Mesa
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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