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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 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2310285697420526 1.4459e-07  
a 2.54764679611504 3.3299e-08 AU
q 1.95906760060066 3.656e-07 AU
i 11.04942726644126 1.0614e-05 deg
node 330.5884994701264 5.9648e-05 deg
peri 251.3496554986921 7.7748e-05 deg
M 149.2152665040092 7.7487e-05 deg
tp 2456384.872500132355
(2013-Apr-02.37250013)
0.00031415 JED
period 1485.27630680737
4.07
2.912e-05
7.973e-08
d
yr
n .2423791441027069 4.752e-09 deg/d
Q 3.13622599162942 4.0992e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      449  
   data-arc span      12588 days (34.46 yr)  
   first obs. used      1980-03-16  
   last obs. used      2014-09-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52086  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 14:00:35  

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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