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12684 (1984 DQ)
Classification: Main-belt Asteroid          SPK-ID: 2012684
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2313142503709968 1.3095e-07  
a 2.547147324422946 2.9266e-08 au
q 1.957955850489562 3.3045e-07 au
i 11.04947522167655 9.6257e-06 deg
node 330.587720672715 5.4143e-05 deg
peri 251.3318650202354 7.3082e-05 deg
M 246.2190242290339 7.6274e-05 deg
tp 2457869.795810580921
(2017-Apr-26.29581058)
0.0003185 JED
period 1484.839540743703
4.07
2.559e-05
7.006e-08
d
yr
n .2424504400116452 4.1785e-09 deg/d
Q 3.13633879835633 3.6035e-08 au
  Orbit Determination Parameters
   # obs. used (total)      558  
   data-arc span      13057 days (35.75 yr)  
   first obs. used      1980-03-16  
   last obs. used      2015-12-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5132  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:21:38  

Additional Information
 Earth MOID = .983279 au 
 Jupiter MOID = 1.98824 au 
 T_jup = 3.379 
[ 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 13.8 mag n/a MPO358753  

12684 (1984 DQ)          Discovered 1984-Feb-23 by Debehogne, H. at La Silla
Reference: 19991222/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1984 DQ = 1980 FU9 = 1988 FF1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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