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JPL Small-Body Database Browser
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11257 Rodionta (1978 TP2)
Classification: Main-belt Asteroid          SPK-ID: 2011257
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1523372796037285 4.6999e-08  
a 2.31478767919555 9.3782e-09 au
q 1.962159221286671 1.0625e-07 au
i 4.307645152774481 5.0713e-06 deg
node 159.8831597971098 5.7058e-05 deg
peri 246.8246113775979 5.91e-05 deg
M 279.1709173345646 1.728e-05 deg
tp 2459289.322032075138
(2021-Mar-15.82203207)
6.256e-05 TDB
period 1286.36782848845
3.52
7.8175e-06
2.14e-08
d
yr
n .2798577452166376 1.7007e-09 deg/d
Q 2.667416137104428 1.0807e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1471  
   data-arc span      24109 days (66.01 yr)  
   first obs. used      1953-08-15  
   last obs. used      2019-08-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48814  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 19:59:30  

Additional Information
 Earth MOID = .97625 au 
 Jupiter MOID = 2.71099 au 
 T_jup = 3.563 
[ 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 14.6   n/a MPO337353  
diameter diameter 6.439 km 0.314 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.068   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

11257 Rodionta           Discovered 1978 Oct. 3 by N. S. Chernykh at the Crimean Astrophysical Observatory.
Tatiana Vladimirovna Rodionova (b. 1964) is an engineer in Orenburg, wife of Igor' Victorovich Rodionov, building engineer, and the discoverer's friend.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030501/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 1978 TP2 = 1971 UT2 = 1978 VF12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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