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 ]  
12492 Tanais (1997 JP16)
Classification: Main-belt Asteroid          SPK-ID: 2012492
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04431953892039166 7.207e-08  
a 2.865792435830825 3.1547e-08 AU
q 2.738781836433256 2.1097e-07 AU
i 3.549243222372634 7.0974e-06 deg
node 111.64218025 0.00014408 deg
peri 124.995516260384 0.000179 deg
M 179.6199528703713 0.00011141 deg
tp 2455916.366997001539
(2011-Dec-20.86699700)
0.00054502 JED
period 1772.007374420976
4.85
2.9259e-05
8.011e-08
d
yr
n .2031594254045553 3.3546e-09 deg/d
Q 2.992803035228393 3.2945e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1048  
   data-arc span      8866 days (24.27 yr)  
   first obs. used      1989-11-02  
   last obs. used      2014-02-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54877  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Feb-19 18:17:44  

Additional Information
 Earth MOID = 1.72849 AU 
 T_jup = 3.296 
[ 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 12.9 mag n/a PDS3 (MPC 36737)  

12492 Tanais           Discovered 1997 May 3 by E. W. Elst at the European Southern Observatory.
The Don, known to the Greeks as the Tanais, is a major Russian river. From its source near the city of Tula, the river flows generally in a southeasterly direction, turning to the west near Volgograd near its closest point to the Volga. The river empties into the sea of Azov.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070730/MPCPages.arcLast Updated: 2007-08-07

[ show close-approach data ]
Alternate Designations
 1997 JP16 = 1989 VH2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Apr-23 17:05 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin