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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 ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .152193608693982 3.5194e-08  
a 2.313888383972006 6.0742e-09 au
q 1.96172936070022 8.3055e-08 au
i 4.308621354392792 4.6272e-06 deg
node 159.8807144113091 3.7626e-05 deg
peri 246.9548998289304 4.0583e-05 deg
M 335.03335363527 1.5651e-05 deg
tp 2459289.659935316564
(2021-Mar-16.15993532)
5.5982e-05 TDB
period 1285.618270273846
3.52
5.0624e-06
1.386e-08
d
yr
n .2800209115909011 1.1026e-09 deg/d
Q 2.666047407243792 6.9987e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2018  
   data-arc span      24652 days (67.49 yr)  
   first obs. used      1953-08-15  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45552  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 22:38:38  

Additional Information
 Earth MOID = .974937 au 
 Jupiter MOID = 2.71233 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 14.67   n/a E2021B10  
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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