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 ]  
12171 Johannink (2382 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2012171
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05946421319471719 5.8562e-08  
a 2.738412498257376 2.6081e-08 AU
q 2.575574953645921 1.5511e-07 AU
i 2.376168078784567 6.5281e-06 deg
node 310.8813870097302 0.00015181 deg
peri 273.8345200901902 0.00016504 deg
M 224.2568098493649 6.6466e-05 deg
tp 2457624.611636462087
(2016-Aug-24.11163646)
0.00030898 JED
period 1655.185714119597
4.53
2.3647e-05
6.474e-08
d
yr
n .2174982522680158 3.1073e-09 deg/d
Q 2.901250042868831 2.7632e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      779  
   data-arc span      13648 days (37.37 yr)  
   first obs. used      1977-10-11  
   last obs. used      2015-02-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53022  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 16:43:20  

Additional Information
 Earth MOID = 1.56909 AU 
 T_jup = 3.347 
[ 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 15.0 mag n/a MPO279644  

12171 Johannink           Discovered 1977 Oct. 16 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Carl F. Johannink (b. 1959) is a Dutch high-school teacher and amateur astronomer. His main interests lie in meteor astronomy. He is a very prolific meteor observer, active within the Dutch Meteor Society. The name was suggested by K. Miskotte.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20100330/MPCPages.arcLast Updated: 2010-04-05

[ show close-approach data ]
Alternate Designations
 2382 T-3 = 1998 HC45 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2015-Apr-25 08:50 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin