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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 2456400.5 (2013-Apr-18.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05875502915744839 1.2844e-07  
a 3.979992765956342 1.1014e-07 AU
q 3.746148174946144 5.5349e-07 AU
i 9.569529577957262 1.0168e-05 deg
node 53.29555180863395 6.4036e-05 deg
peri 160.2604899842509 0.00011158 deg
M 338.4517088203478 8.9466e-05 deg
tp 2456574.092990816831
(2013-Oct-08.59299082)		 0.00072048 JED
period 2900.1592828424
7.94		 0.00012039
3.296e-07		 d
yr
n .1241311131184387 5.1528e-09 deg/d
Q 4.213837356966541 1.1661e-07 AU
   Orbit Determination Parameters
   # obs. used (total)      348  
   data-arc span      12585 days (34.46 yr)  
   first obs. used      1978-11-05  
   last obs. used      2013-04-20  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      0  
   fit RMS      .64488  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Apr-29 14:57:36  

Additional Information
 Earth MOID = 2.74104 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 13.2 mag n/a PDS3 (MPO 18728)  

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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