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JPL Small-Body Database Browser
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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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1766311806027826 3.4538e-08  
a 3.175113921341313 1.8441e-08 au
q 2.614289800866466 1.1255e-07 au
i 2.069911155493376 3.7344e-06 deg
node 144.2178855637414 0.00011674 deg
peri 189.8485802784274 0.00011737 deg
M 342.7307573814486 1.4338e-05 deg
tp 2459099.630702841722
(2020-Sep-07.13070284)
8.2658e-05 TDB
period 2066.509447535545
5.66
1.8003e-05
4.929e-08
d
yr
n .1742068009557492 1.5176e-09 deg/d
Q 3.735938041816159 2.1698e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2268  
   data-arc span      24276 days (66.46 yr)  
   first obs. used      1953-11-09  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48433  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 02:03:17  

Additional Information
 Earth MOID = 1.60429 au 
 Jupiter MOID = 1.64183 au 
 T_jup = 3.176 
[ show covariance matrix ]

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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