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71949 (2000 WT91)
Classification: Main-belt Asteroid          SPK-ID: 2071949
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05847343304129195 5.0442e-08  
a 2.284344502537415 9.8676e-09 au
q 2.15077103722505 1.1861e-07 au
i 1.737503712820364 5.6917e-06 deg
node 12.56264640517876 0.00013019 deg
peri 222.6410478626536 0.00013847 deg
M 71.30469650160875 5.0386e-05 deg
tp 2458750.720689366630
(2019-Sep-24.22068937)
0.00017592 TDB
period 1261.074743176059
3.45
8.1711e-06
2.237e-08
d
yr
n .2854707874755528 1.8497e-09 deg/d
Q 2.41791796784978 1.0445e-08 au
  Orbit Determination Parameters
   # obs. used (total)      697  
   data-arc span      8860 days (24.26 yr)  
   first obs. used      1995-05-08  
   last obs. used      2019-08-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5464  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 13:47:46  

Additional Information
 Earth MOID = 1.13946 au 
 Jupiter MOID = 2.56299 au 
 T_jup = 3.600 
[ 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 16.2   n/a MPO474603  
diameter diameter 2.414 km 0.422 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.100   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

71949 (2000 WT91)          Discovered 2000-Nov-21 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 WT91 = 2002 GV20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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