Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1532982300899052 4.7181e-08  
a 2.314076416471199 9.0115e-09 au
q 1.959332597533374 1.0696e-07 au
i 4.306058920230563 5.0764e-06 deg
node 159.968868341933 5.7117e-05 deg
peri 246.6011053112115 5.9114e-05 deg
M 167.4489080479634 1.6853e-05 deg
tp 2458002.439953333576
(2017-Sep-05.93995333)
5.8731e-05 TDB
period 1285.774982409815
3.52
7.5106e-06
2.056e-08
d
yr
n .2799867822325207 1.6355e-09 deg/d
Q 2.668820235409024 1.0393e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1468  
   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      .48513  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 01:09:13  

Additional Information
 Earth MOID = .972849 au 
 Jupiter MOID = 2.71031 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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-12 06:40 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin