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5539 Limporyen (1965 UA1)
Classification: Main-belt Asteroid          SPK-ID: 2005539
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1575983420971122 2.5732e-08  
a 2.435569137013463 7.5867e-09 au
q 2.051727478957247 6.23e-08 au
i 1.823620702479215 3.9745e-06 deg
node 295.5132745642325 9.606e-05 deg
peri 122.2965242822628 9.7137e-05 deg
M 102.2194752377508 1.4481e-05 deg
tp 2458606.287613202409
(2019-May-02.78761320)
5.5048e-05 TDB
period 1388.350496977717
3.80
6.487e-06
1.776e-08
d
yr
n .2593005158162002 1.2116e-09 deg/d
Q 2.819410795069679 8.7824e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2238  
   data-arc span      19835 days (54.31 yr)  
   first obs. used      1965-10-16  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47106  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 17:40:29  

Additional Information
 Earth MOID = 1.06459 au 
 Jupiter MOID = 2.5078 au 
 T_jup = 3.487 
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Orbital Elements at Epoch 2456754.5 (2014-Apr-07.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1561340723059732 2.5634e-08  
q 2.056178791058956 6.1968e-08 au
tp 2457216.477130226790
(2015-Jul-12.97713023)
5.3561e-05 TDB
node 295.7156211883569 9.5926e-05 deg
peri 121.9342152033153 9.7038e-05 deg
i 1.824279171572987 3.977e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2238  
   data-arc span      19835 days (54.31 yr)  
   first obs. used      1965-10-16  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47106  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 17:40:29  

Additional Information
 Jupiter MOID = 2.5078 au 
 T_jup = 3.487 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.571264170657986E-16 -1.580127076831761E-15 2.719209108347904E-13 -2.612344940651553E-15 7.600580917569173E-14 4.129681097741222E-17
q -1.580127076831761E-15 3.840058382979116E-15 -5.521284187830967E-13 5.991525649896826E-15 -1.598842439026398E-13 -2.122500735148433E-17
tp 2.719209108347904E-13 -5.521284187830967E-13 2.868779050861952E-9 -2.051168394465059E-11 7.915321983650451E-10 4.091237992488406E-13
node -2.612344940651553E-15 5.991525649896826E-15 -2.051168394465059E-11 9.201892124861817E-9 -9.202202299110897E-9 8.127672596927659E-11
peri 7.600580917569173E-14 -1.598842439026398E-13 7.915321983650451E-10 -9.202202299110897E-9 9.41631942841542E-9 -8.113165681922208E-11
i 4.129681097741222E-17 -2.122500735148433E-17 4.091237992488406E-13 8.127672596927659E-11 -8.113165681922208E-11 1.581618668946801E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.8   n/a MPO452244  
diameter diameter 10.362 km 0.151 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.055   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

5539 Limporyen           Discovered 1965 Oct. 16 at the Purple Mountain Observatory.
Lim Poryen (b. 1914) is a prestigious philanthropist who helped launch many schools and a first-class Limporyen library in China.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20041126/MPCPages.arcLast Updated: 2004-12-06

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Alternate Designations
 1965 UA1 = 1984 UY4 = 1988 XQ3 = 1991 NS3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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