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JPL Small-Body Database Browser
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11435 (1931 UB)
Classification: Main-belt Asteroid          SPK-ID: 2011435
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2158021726016083 3.602e-08  
a 2.426174808939458 7.2284e-09 au
q 1.902601014059031 8.7616e-08 au
i 1.373387148186088 3.4193e-06 deg
node 234.3582796036569 0.00015213 deg
peri 117.6002066486285 0.00015228 deg
M 179.0792785644056 6.8061e-06 deg
tp 2458313.867436588181
(2018-Jul-14.36743659)
2.5359e-05 TDB
period 1380.325656937209
3.78
6.1687e-06
1.689e-08
d
yr
n .260808018883602 1.1656e-09 deg/d
Q 2.949748603819885 8.7883e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2029  
   data-arc span      32252 days (88.30 yr)  
   first obs. used      1931-10-17  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47838  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 20:02:53  

Additional Information
 Earth MOID = .897573 au 
 Jupiter MOID = 2.49036 au 
 T_jup = 3.478 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.2   n/a MPO492882  
diameter diameter 4.153 km 0.258 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.257   0.065 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11435 (1931 UB)          Discovered 1931-Oct-17 by Reinmuth, K. at Heidelberg
Reference: 19990928/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1931 UB = 1984 UF1 = 1990 EZ9 = 1998 HT57 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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