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91604 Clausmadsen (1999 TN19)
Classification: Main-belt Asteroid          SPK-ID: 2091604
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0229189223890361 4.4275e-08  
a 3.034656996327063 2.365e-08 au
q 2.965105928150897 1.3755e-07 au
i 11.07496824453145 3.9257e-06 deg
node 81.32630082397874 2.6183e-05 deg
peri 81.44844277894541 0.00010244 deg
M 181.3594074840193 0.00010143 deg
tp 2459958.665417858831
(2023-Jan-14.16541786)
0.00054921 TDB
period 1930.913604635083
5.29
2.2572e-05
6.18e-08
d
yr
n .1864402421402149 2.1795e-09 deg/d
Q 3.104208064503228 2.4192e-08 au
  Orbit Determination Parameters
   # obs. used (total)      855  
   data-arc span      7688 days (21.05 yr)  
   first obs. used      1999-10-08  
   last obs. used      2020-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49281  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:39:15  

Additional Information
 Earth MOID = 1.99796 au 
 Jupiter MOID = 1.95073 au 
 T_jup = 3.213 
[ 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 14.4   n/a MPO264001  

91604 Clausmadsen           Discovered 1999 Oct. 14 by T. Pauwels and H. Boffin at Uccle.
Claus Madsen (b. 1951), senior counsellor for international relations at the European Southern Observatory, has played a crucial role in increasing public awareness and interest in astronomy. He helped create the European Association for Astronomy Education and was key in having the U.N. pass the IYA resolution.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20100726/MPCPages.arcLast Updated: 2010-07-28

[ show close-approach data ]
Alternate Designations
 1999 TN19 = 2001 AJ32 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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