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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0595786881562182 8.7021e-08  
a 3.983488301984181 9.8644e-08 AU
q 3.746157294666322 3.6368e-07 AU
i 9.566056555195441 8.5078e-06 deg
node 53.29473754780138 4.7468e-05 deg
peri 160.2752256314926 9.6343e-05 deg
M 52.84268655784039 7.7971e-05 deg
tp 2456574.238474709667
(2013-Oct-08.73847471)
0.00063364 JED
period 2903.980836336784
7.95
0.00010787
2.953e-07
d
yr
n .1239677602191482 4.6048e-09 deg/d
Q 4.220819309302039 1.0452e-07 AU
  Orbit Determination Parameters
   # obs. used (total)      378  
   data-arc span      13022 days (35.65 yr)  
   first obs. used      1978-11-05  
   last obs. used      2014-07-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .64792  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 13:04:31  

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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