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9307 Regiomontanus (1987 QS)
Classification: Main-belt Asteroid          SPK-ID: 2009307
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1432546896781829 3.9717e-08  
a 2.346297600780668 9.9246e-09 au
q 2.010179466088168 9.3619e-08 au
i 6.581430415996718 4.3269e-06 deg
node 321.660366506475 3.5945e-05 deg
peri 7.923531788813404 3.8512e-05 deg
M 51.93587191174083 1.4837e-05 deg
tp 2458811.118305571485
(2019-Nov-23.61830557)
5.3733e-05 TDB
period 1312.722930889182
3.59
8.329e-06
2.28e-08
d
yr
n .2742391341912124 1.74e-09 deg/d
Q 2.682415735473167 1.1346e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1660  
   data-arc span      23417 days (64.11 yr)  
   first obs. used      1955-10-24  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45848  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 21:38:55  

Additional Information
 Earth MOID = .999163 au 
 Jupiter MOID = 2.64495 au 
 T_jup = 3.538 
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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 MPO279614  
diameter diameter 2.908 km 0.555 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.525   0.209 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

9307 Regiomontanus           Discovered 1987 Aug. 21 by F. Börngen at Tautenburg.
Named for the German mathematician and astronomer Johannes Regiomontanus (1436-1476), originally called J. Müller, one of the most famous scholars of his time and trailblazer of the new world view. He improved mathematical methods and created modern trigonometry. He was sure that calculations of the orbits of celestial bodies could be improved essentially by new, more exact systematic observations. So in 1472 he founded the first German observatory in Nürnberg. His plan was interrupted by his early death. Calendars and ephemeris he calculated and published helped the sailors Columbus, da Gama and Vespucci.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19990202/MPCPages.arcLast Updated: 2010-06-11

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Alternate Designations
 1987 QS = 1989 CX4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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