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21202 (1994 PW19)
Classification: Main-belt Asteroid          SPK-ID: 2021202
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1261613009034354 3.5256e-08  
a 2.981757789105697 1.6769e-08 au
q 2.605575347453171 1.049e-07 au
i .6565814823949837 5.0689e-06 deg
node 11.52877175669706 0.00032118 deg
peri 301.2072595333577 0.000322 deg
M 96.81541050036715 2.0796e-05 deg
tp 2458890.734779913674
(2020-Feb-11.23477991)
0.00010966 TDB
period 1880.645635752243
5.15
1.5865e-05
4.344e-08
d
yr
n .1914236223753035 1.6148e-09 deg/d
Q 3.357940230758223 1.8885e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1025  
   data-arc span      10501 days (28.75 yr)  
   first obs. used      1992-04-06  
   last obs. used      2021-01-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58503  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:31:24  

Additional Information
 Earth MOID = 1.59093 au 
 Jupiter MOID = 1.89715 au 
 T_jup = 3.247 
[ 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 14.84   n/a MPCxxxxx  
diameter diameter 6.859 km 0.270 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.049   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

21202 (1994 PW19)          Discovered 1994-Aug-12 by Elst, E. W. at La Silla
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1994 PW19 = 2000 WF183 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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