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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05937620717188782 1.2228e-07  
a 3.982648984359585 1.0627e-07 AU
q 3.746174393171342 5.23e-07 AU
i 9.567359097933277 1.0048e-05 deg
node 53.29850744922467 6.1833e-05 deg
peri 160.2031860553778 0.0001085 deg
M 28.12338798369642 8.6043e-05 deg
tp 2456573.711195870428
(2013-Oct-08.21119587)
0.00069464 JED
period 2903.063085214925
7.95
0.00011619
3.181e-07
d
yr
n .124006950394379 4.9632e-09 deg/d
Q 4.219123575547828 1.1258e-07 AU
  Orbit Determination Parameters
   # obs. used (total)      355  
   data-arc span      12917 days (35.36 yr)  
   first obs. used      1978-11-05  
   last obs. used      2014-03-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .64517  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 14:31:38  

Additional Information
 Earth MOID = 2.74116 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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