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31338 Lipperhey (1998 HX147)
Classification: Outer Main-belt Asteroid          SPK-ID: 2031338
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05989887408295291 7.266e-08  
a 3.985331049413139 9.2495e-08 au
q 3.746614206705459 2.871e-07 au
i 9.564981258556919 7.7429e-06 deg
node 53.27053905246034 4.7035e-05 deg
peri 160.723988757029 9.0485e-05 deg
M 126.730109185394 7.2949e-05 deg
tp 2456577.507760141948
(2013-Oct-12.00776014)
0.00059559 JED
period 2905.996126067757
7.96
0.00010117
2.77e-07
d
yr
n .1238817893701508 4.3127e-09 deg/d
Q 4.224047892120819 9.8035e-08 au
  Orbit Determination Parameters
   # obs. used (total)      394  
   data-arc span      13494 days (36.94 yr)  
   first obs. used      1978-11-05  
   last obs. used      2015-10-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .63671  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Oct-28 17:06:56  

Additional Information
 Earth MOID = 2.74079 au 
 Jupiter MOID = .759842 au 
 T_jup = 3.029 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.3 mag n/a MPO299181  

31338 Lipperhey           Discovered 1998 Apr. 25 by E. W. Elst at the European Southern Observatory.
Dutch lensmaker Hans Lipperhey (1570-1619), known for his invention of Dutch perspective glass, was the first to design and seek a patent for a practical telescope, which he made available for general use in 1608.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080520/MPCPages.arcLast Updated: 2008-05-22

[ show close-approach data ]
Alternate Designations
 1998 HX147 = 1978 VM6 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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