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30830 Jahn (1990 TQ12)
Classification: Main-belt Asteroid          SPK-ID: 2030830
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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .213965876782034 3.0869e-08  
a 2.3605119805802 7.6438e-09 au
q 1.855442965000861 7.4018e-08 au
i 4.676278151439003 3.4962e-06 deg
node 255.7317767783104 5.4967e-05 deg
peri 175.7547858121012 5.5931e-05 deg
M 292.6530130997216 9.7744e-06 deg
tp 2458848.312614572286
(2019-Dec-30.81261457)
3.6168e-05 TDB
period 1324.67012040377
3.63
6.4343e-06
1.762e-08
d
yr
n .27176577357257 1.32e-09 deg/d
Q 2.865580996159538 9.2793e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1265  
   data-arc span      14588 days (39.94 yr)  
   first obs. used      1979-11-22  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47961  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 05:19:26  

Additional Information
 Earth MOID = .86991 au 
 Jupiter MOID = 2.42336 au 
 T_jup = 3.516 
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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 14.7   n/a MPO351042  
diameter diameter 4.037 km 0.175 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.207   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

30830 Jahn           Discovered 1990 Oct. 14 by F. Borngen and L. D. Schmadel at Tautenburg.
Friedrich Ludwig Jahn (1778-1852) was an educator, writer and the "father of gymnastics". He opened the first sports ground in Berlin in 1811 and founded the Turnverein (gym club) movement in Germany. He invented diverse apparatus that became standard equipment for sports activities.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020427/MPCPages.arcLast Updated: 2003-10-02

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Alternate Designations
 1990 TQ12 = 1979 WV7 = 1990 VW1 = 1999 GT51 
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