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10781 Ritter (1991 PV31)
Classification: Main-belt Asteroid          SPK-ID: 2010781
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1205142347213041 6.8003e-08  
a 2.640027260354122 2.2375e-08 AU
q 2.321866395429164 1.7661e-07 AU
i 5.463028234245856 8.298e-06 deg
node 184.8047453522113 6.2259e-05 deg
peri 152.4170922897723 6.9311e-05 deg
M 96.21627482341788 3.0541e-05 deg
tp 2456381.747819451018
(2013-Mar-30.24781945)
0.00013172 JED
period 1566.790912185082
4.29
1.9918e-05
5.453e-08
d
yr
n .2297690120616897 2.921e-09 deg/d
Q 2.95818812527908 2.5071e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      835  
   data-arc span      10079 days (27.59 yr)  
   first obs. used      1986-06-26  
   last obs. used      2014-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52606  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 13:45:53  

Additional Information
 Earth MOID = 1.31324 AU 
 T_jup = 3.379 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.9 mag n/a PDS3 (MPC 34765)  

10781 Ritter           Discovered 1991 Aug. 6 by F. Borngen at Tautenburg.
As the result of numerous physical experiments he conducted during the decade he lived in Jena, the German scientist Johann Wilhelm Ritter (1776-1810) discovered the electrochemical voltage ranking of the metals (1798) and the ultraviolet part of the radiation in the solar spectrum (1801).
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20000320/MPCPages.arcLast Updated: 2013-03-29

Alternate Designations
 1991 PV31 = 1991 PJ20 = 1997 XM1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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