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JPL Small-Body Database Browser
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108985 (2001 PW51)
Classification: Outer Main-belt Asteroid          SPK-ID: 2108985
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09417618211805681 4.8891e-08  
a 3.223152551102968 2.8854e-08 au
q 2.919608349456015 1.5888e-07 au
i 5.388936692730996 4.9557e-06 deg
node 299.7966323503374 5.8823e-05 deg
peri 21.99924032126872 6.5136e-05 deg
M 94.84005957342532 2.7632e-05 deg
tp 2458443.687423686522
(2018-Nov-21.18742369)
0.0001627 TDB
period 2113.585001680239
5.79
2.8381e-05
7.77e-08
d
yr
n .1703267196321938 2.2872e-09 deg/d
Q 3.526696752749921 3.1571e-08 au
  Orbit Determination Parameters
   # obs. used (total)      548  
   data-arc span      7556 days (20.69 yr)  
   first obs. used      1999-03-21  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52652  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 10:13:02  

Additional Information
 Earth MOID = 1.90768 au 
 Jupiter MOID = 1.75056 au 
 T_jup = 3.175 
[ 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 14.8   n/a MPO453549  
diameter diameter 6.670 km 0.404 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.057   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

108985 (2001 PW51)          Discovered 2001-Aug-15 by NEAT at Haleakala
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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