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21801 Ancerl (1999 TW3)
Classification: Main-belt Asteroid          SPK-ID: 2021801
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09129320659213019 3.651e-08  
a 2.394630515815381 7.7598e-09 au
q 2.176017017423229 8.7447e-08 au
i 5.373519640753121 3.9697e-06 deg
node 65.43123325913153 3.0556e-05 deg
peri 6.298993140406672 3.5174e-05 deg
M 267.6967112869095 1.8323e-05 deg
tp 2459743.533076205901
(2022-Jun-13.03307621)
6.9654e-05 TDB
period 1353.493566436778
3.71
6.579e-06
1.801e-08
d
yr
n .2659783606860726 1.2929e-09 deg/d
Q 2.613244014207534 8.4682e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2131  
   data-arc span      17448 days (47.77 yr)  
   first obs. used      1973-09-29  
   last obs. used      2021-07-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46089  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 14:04:29  

Additional Information
 Earth MOID = 1.19035 au 
 Jupiter MOID = 2.59692 au 
 T_jup = 3.518 
[ 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 14.35   n/a E2021B10  
diameter diameter 4.103 km 0.357 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.240   0.052 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21801 Ančerl           Discovered 1999 Oct. 2 by L. Šarounová at Ondřejov.
Karel Ančerl (1908-1973) was the head conductor of the Czech Philharmonic Orchestra during 1950-1968. He brought the orchestra to the highest standard by his demands and consistent work. He was an excellent interpreter of the music of the twentieth century and made some of Prague's best recordings.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020427/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1999 TW3 = 1992 WO9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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