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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 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2310285711491586 1.4197e-07  
a 2.547646795472808 3.1965e-08 AU
q 1.959067596521993 3.5741e-07 AU
i 11.04942738668352 1.05e-05 deg
node 330.5885001622331 5.7075e-05 deg
peri 251.3496548069124 7.571e-05 deg
M 149.2152670206003 7.6401e-05 deg
tp 2456384.872498233808
(2013-Apr-02.37249823)
0.00031016 JED
period 1485.27630624574
4.07
2.7953e-05
7.653e-08
d
yr
n .2423791441943582 4.5617e-09 deg/d
Q 3.136225994423624 3.935e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      473  
   data-arc span      12617 days (34.54 yr)  
   first obs. used      1980-03-16  
   last obs. used      2014-10-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51182  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:23:23  

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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