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15679 (1981 DA1)
Classification: Main-belt Asteroid          SPK-ID: 2015679
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09350601787571929 3.1189e-08  
a 2.722696568707489 1.1334e-08 au
q 2.468108054683766 8.6554e-08 au
i 11.47276682717208 3.5637e-06 deg
node 234.5070802478273 1.9349e-05 deg
peri 10.97591012412538 2.8863e-05 deg
M 294.6397432374837 2.2563e-05 deg
tp 2459694.426093308919
(2022-Apr-24.92609331)
0.00010331 TDB
period 1640.957347840779
4.49
1.0247e-05
2.805e-08
d
yr
n .2193841299249483 1.3699e-09 deg/d
Q 2.977285082731211 1.2394e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2065  
   data-arc span      24533 days (67.17 yr)  
   first obs. used      1954-04-03  
   last obs. used      2021-06-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49852  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 17:30:07  

Additional Information
 Earth MOID = 1.45642 au 
 Jupiter MOID = 2.03651 au 
 T_jup = 3.323 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.82   n/a MPCxxxxx  

15679 (1981 DA1)          Discovered 1981-Feb-28 by Bus, S. J. at Siding Spring
Reference: 20000726/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1981 DA1 = 1992 WT9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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