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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04399137154450565 7.0173e-08  
a 2.866849850249364 3.054e-08 AU
q 2.740733193324734 2.0711e-07 AU
i 3.549143037615786 6.9432e-06 deg
node 111.6430765397125 0.00013869 deg
peri 124.7108250867309 0.00017465 deg
M 220.535791049191 0.00011148 deg
tp 2457687.356662614857
(2016-Oct-25.85666261)
0.00055245 JED
period 1772.988212542501
4.85
2.8331e-05
7.757e-08
d
yr
n .2030470351992655 3.2446e-09 deg/d
Q 2.992966507173994 3.1884e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1086  
   data-arc span      9190 days (25.16 yr)  
   first obs. used      1989-11-02  
   last obs. used      2014-12-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51093  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 02:16:12  

Additional Information
 Earth MOID = 1.73205 AU 
 T_jup = 3.295 
[ 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 13.0 mag n/a MPO319241  

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 ]
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