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 ]  
20174 Eisenstein (1996 XD20)
Classification: Main-belt Asteroid          SPK-ID: 2020174
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1124041467435213 5.0947e-08  
a 2.426958621173962 1.4022e-08 au
q 2.15415840817907 1.2425e-07 au
i 6.567506046626141 5.927e-06 deg
node 101.0257188533037 4.7191e-05 deg
peri 300.3010254913845 5.3885e-05 deg
M 98.79209317265331 2.6818e-05 deg
tp 2457221.524031899757
(2015-Jul-18.02403190)
0.00010213 JED
period 1380.994613381196
3.78
1.1968e-05
3.277e-08
d
yr
n .2606816829781718 2.2591e-09 deg/d
Q 2.699758834168854 1.5598e-08 au
  Orbit Determination Parameters
   # obs. used (total)      616  
   data-arc span      7019 days (19.22 yr)  
   first obs. used      1996-12-13  
   last obs. used      2016-03-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57683  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Mar-24 16:37:27  

Additional Information
 Earth MOID = 1.17026 au 
 Jupiter MOID = 2.66301 au 
 T_jup = 3.492 
[ 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 15.2 mag n/a MPO263527  

20174 Eisenstein           Discovered 1996 Dec. 13 by P. G. Comba at Prescott.
Ferdinand Gotthold Max Eisenstein (1823-1852) was a brilliant German mathematician who published research on elliptic functions, cyclotomy, quadratic and biquadratic residues, as well as on cubic and biquadratic reciprocity laws.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010309/MPCPages.arcLast Updated: 2009-05-11

[ 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 2016-Apr-29 12:05 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin