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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2310285725908478 1.4022e-07  
a 2.54764679682663 3.0924e-08 AU
q 1.959067593890128 3.5187e-07 AU
i 11.04942621220683 1.0221e-05 deg
node 330.5884995821771 5.5707e-05 deg
peri 251.3496538093387 7.4493e-05 deg
M 149.2152680026476 7.5635e-05 deg
tp 2456384.872493691392
(2013-Apr-02.37249369)
0.00030734 JED
period 1485.276307429656
4.07
2.7043e-05
7.404e-08
d
yr
n .2423791440011575 4.4131e-09 deg/d
Q 3.136225999763132 3.8068e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      516  
   data-arc span      12710 days (34.80 yr)  
   first obs. used      1980-03-16  
   last obs. used      2015-01-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50419  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 02:17:01  

Additional Information
 Earth MOID = .986273 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 13.7 mag n/a PDS3 (MPC 37033)  

12684 (1984 DQ)          Discovered 1984-Feb-23 by Debehogne, H. at La Silla (809)
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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