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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05957869193605479 8.017e-08  
a 3.983488299689895 9.5476e-08 AU
q 3.746157277451792 3.275e-07 AU
i 9.566055306309268 8.2365e-06 deg
node 53.29474039499577 4.7225e-05 deg
peri 160.2752245491816 9.3791e-05 deg
M 52.84268528819668 7.6101e-05 deg
tp 2456574.238485319649
(2013-Oct-08.73848532)
0.00061778 JED
period 2903.980833827967
7.95
0.0001044
2.858e-07
d
yr
n .1239677603262469 4.4569e-09 deg/d
Q 4.220819321927998 1.0116e-07 AU
  Orbit Determination Parameters
   # obs. used (total)      382  
   data-arc span      13429 days (36.77 yr)  
   first obs. used      1978-11-05  
   last obs. used      2015-08-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .64496  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 15:19:23  

Additional Information
 Earth MOID = 2.74233 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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