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21075 Heussinger (1991 RF4)
Classification: Main-belt Asteroid          SPK-ID: 2021075
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1789634931461505 4.2039e-08  
a 2.421347069478978 9.8711e-09 au
q 1.988014339805825 1.0291e-07 au
i 2.230427548239633 4.0953e-06 deg
node 258.2708977141333 0.00012373 deg
peri 49.124257815448 0.00012436 deg
M 263.9923626797887 1.5497e-05 deg
tp 2459367.517924582614
(2021-Jun-02.01792458)
6.0592e-05 TDB
period 1376.207732402201
3.77
8.4156e-06
2.304e-08
d
yr
n .2615884154143009 1.5996e-09 deg/d
Q 2.85467979915213 1.1638e-08 au
  Orbit Determination Parameters
   # obs. used (total)      840  
   data-arc span      24273 days (66.46 yr)  
   first obs. used      1953-08-15  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52178  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 23:18:21  

Additional Information
 Earth MOID = .97403 au 
 Jupiter MOID = 2.39252 au 
 T_jup = 3.490 
[ 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 15.5   n/a MPO431743  
diameter diameter 4.561 km 0.071 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.057   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21075 Heussinger           Discovered 1991 Sept. 12 by L. D. Schmadel and F. Börngen at Tautenburg.
Adalbert Heussinger (b. 1923) is a member of the Catholic order of Minorites. He was for 40 years confessor in St. Peter's Cathedral at the Vatican, where he absolved thousands of penitents of their sins. He is recognized as a distinguished scholar of theology and philosophy. The name was suggested by the first discoverer.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060613/MPCPages.arcLast Updated: 2008-05-22

Alternate Designations
 1991 RF4 = 1987 QC9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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