Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
29208 Halorentz (1991 RT2)
Classification: Main-belt Asteroid          SPK-ID: 2029208
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1958081753947943 5.0749e-08  
a 2.237511033917066 1.2591e-08 AU
q 1.799388080940045 1.1874e-07 AU
i 4.307905802308262 5.2252e-06 deg
node 229.2727144405266 7.1362e-05 deg
peri 82.89823449689855 7.3648e-05 deg
M 11.27396610383972 1.4456e-05 deg
tp 2456962.215724809594
(2014-Oct-31.71572481)
4.9073e-05 JED
period 1222.492505441545
3.35
1.0319e-05
2.825e-08
d
yr
n .2944803329243917 2.4857e-09 deg/d
Q 2.675633986894086 1.5057e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      576  
   data-arc span      8393 days (22.98 yr)  
   first obs. used      1991-09-09  
   last obs. used      2014-09-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58597  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 14:25:18  

Additional Information
 Earth MOID = .792512 AU 
 T_jup = 3.608 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.8 mag n/a PDS3 (MPO 16212)  

29208 Halorentz           Discovered 1991 Sept. 9 by F. Borngen and L. D. Schmadel at Tautenburg.
The Dutch physicist Hendrick Antoon Lorentz (1853-1928) formulated the classic electron theory and predicted the Zeeman effect. He derived the Lorentz transformation, the Lorentz contraction, time dilation and the velocity dependence of the mass. He shared the 1902 Nobel Prize for physics with his student Zeeman.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020624/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Oct-25 16:02 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin