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JPL Small-Body Database Browser
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15273 Ruhmkorff (1991 GQ3)
Classification: Main-belt Asteroid          SPK-ID: 2015273
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1485252985649519 3.3618e-08  
a 2.599074089690388 1.1399e-08 au
q 2.213045834526693 8.7578e-08 au
i 12.10658903026893 5.3748e-06 deg
node 199.8310853064314 1.4447e-05 deg
peri 236.8643099471979 2.4348e-05 deg
M 90.08178797967264 1.7673e-05 deg
tp 2458617.533387420043
(2019-May-14.03338742)
7.5098e-05 TDB
period 1530.475622440966
4.19
1.0068e-05
2.756e-08
d
yr
n .235220995827319 1.5474e-09 deg/d
Q 2.985102344854084 1.3092e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1907  
   data-arc span      10526 days (28.82 yr)  
   first obs. used      1991-04-08  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49112  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 21:14:59  

Additional Information
 Earth MOID = 1.25201 au 
 Jupiter MOID = 2.40397 au 
 T_jup = 3.369 
[ 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 13.6   n/a MPO384887  

15273 Ruhmkorff           Discovered 1991 Apr. 8 by E. W. Elst at the European Southern Observatory.
Heinrich D. Ruhmkorff (1803-1877) was a German researcher who invented the Ruhmkorff coil, used in many physical experiments where high voltages are needed. The coil was applied for energizing discharge tubes, notably for generating x-rays.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060413/MPCPages.arcLast Updated: 2006-04-17

[ show close-approach data ]
Alternate Designations
 1991 GQ3 = 1993 TT1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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