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4073 Ruianzhongxue (1981 UE10)
Classification: Main-belt Asteroid          SPK-ID: 2004073
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1766311805293149 3.4522e-08  
a 3.175113920765156 1.7524e-08 au
q 2.614289800625345 1.1252e-07 au
i 2.069911453150014 3.7224e-06 deg
node 144.2179196224426 0.0001134 deg
peri 189.8485458089825 0.00011398 deg
M 342.7307579966343 1.3009e-05 deg
tp 2459099.630699283387
(2020-Sep-07.13069928)
7.4938e-05 TDB
period 2066.509446973062
5.66
1.7108e-05
4.684e-08
d
yr
n .1742068010031665 1.4422e-09 deg/d
Q 3.735938040904967 2.0619e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2348  
   data-arc span      24327 days (66.60 yr)  
   first obs. used      1953-11-09  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48183  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 16:05:09  

Additional Information
 Earth MOID = 1.60429 au 
 Jupiter MOID = 1.64183 au 
 T_jup = 3.176 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456522.5 (2013-Aug-18.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1789598364258195 3.4404e-08  
q 2.603894115856523 1.1239e-07 au
tp 2457042.043213933876
(2015-Jan-19.54321393)
7.1752e-05 TDB
node 144.3539115089376 0.00011368 deg
peri 190.8548025569551 0.00011425 deg
i 2.068229105799452 3.7209e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2348  
   data-arc span      24327 days (66.60 yr)  
   first obs. used      1953-11-09  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48183  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 16:05:09  

Additional Information
 Jupiter MOID = 1.64183 au 
 T_jup = 3.176 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.183667240271439E-15 -3.83744048086302E-15 3.074492998316313E-13 -2.055305637409743E-15 7.1249591695824E-14 1.350337171458934E-16
q -3.83744048086302E-15 1.263149856190198E-14 -9.445505960119631E-13 7.525679829288394E-15 -2.312929215933644E-13 -3.702468496400793E-16
tp 3.074492998316313E-13 -9.445505960119631E-13 5.148300916394123E-9 -5.087776491803452E-12 8.475631101908286E-10 5.935869853584629E-13
node -2.055305637409743E-15 7.525679829288394E-15 -5.087776491803452E-12 1.292204178222432E-8 -1.291422866409902E-8 4.776415564363204E-11
peri 7.1249591695824E-14 -2.312929215933644E-13 8.475631101908286E-10 -1.291422866409902E-8 1.305268123165155E-8 -4.763940696069054E-11
i 1.350337171458934E-16 -3.702468496400793E-16 5.935869853584629E-13 4.776415564363204E-11 -4.763940696069054E-11 1.384539390429342E-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 12.2   n/a MPO347555  
diameter diameter 12.623 km 3.157 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
geometric albedo albedo 0.122   0.092 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

4073 Ruianzhongxue           Discovered 1981 Oct. 23 at the Purple Mountain Observatory.
Ruianzhongxue (Ruian Middle School) in Zhejiang province is celebrating its 110th anniversary. Founded by progressive educator Sun Yirang (1848-1908), the school specializes in mathematics. Many prominent scholars were trained there.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20051215/MPCPages.arcLast Updated: 2006-03-22

[ show close-approach data ]
Alternate Designations
 1981 UE10 = 1953 VU2 = 1986 PA1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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