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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1262416493169825 3.5244e-08  
a 2.981357767455262 1.6833e-08 au
q 2.604986245687714 1.0488e-07 au
i .6565561601604543 5.0692e-06 deg
node 11.52739002460556 0.0003212 deg
peri 301.1401642959818 0.00032202 deg
M 59.35103074596562 2.0857e-05 deg
tp 2458890.511677051808
(2020-Feb-11.01167705)
0.00010958 TDB
period 1880.267197700434
5.15
1.5924e-05
4.36e-08
d
yr
n .191462149869061 1.6215e-09 deg/d
Q 3.357729289222811 1.8958e-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.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58484  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:51:20  

Additional Information
 Earth MOID = 1.58895 au 
 Jupiter MOID = 1.89803 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 14.8   n/a MPO266067  
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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