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213941 (2003 WH73)
Classification: Main-belt Asteroid          SPK-ID: 2213941
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2461345692366776 5.675e-08  
a 2.329906752869758 1.3159e-08 au
q 1.756436157890534 1.3868e-07 au
i 7.076667826910464 4.7445e-06 deg
node 53.30397480519527 3.1586e-05 deg
peri 302.7103027256057 3.2848e-05 deg
M 334.2169140695235 7.4421e-06 deg
tp 2459293.533344161336
(2021-Mar-20.03334416)
2.7001e-05 TDB
period 1298.991283991036
3.56
1.1005e-05
3.013e-08
d
yr
n .2771381181973229 2.3478e-09 deg/d
Q 2.903377347848982 1.6398e-08 au
  Orbit Determination Parameters
   # obs. used (total)      621  
   data-arc span      6671 days (18.26 yr)  
   first obs. used      2002-04-09  
   last obs. used      2020-07-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45766  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:44:44  

Additional Information
 Earth MOID = .763376 au 
 Jupiter MOID = 2.56744 au 
 T_jup = 3.521 
[ 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 16.49   n/a E2021B55  
diameter diameter 1.461 km 0.219 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.228   0.090 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

213941 (2003 WH73)          Discovered 2003-Nov-20 by LINEAR at Socorro
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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