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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09360256334179429 3.2994e-08  
a 2.72296747893539 1.1644e-08 au
q 2.468090743010694 9.0627e-08 au
i 11.47267132760293 3.8276e-06 deg
node 234.5160679140859 1.9372e-05 deg
peri 10.90938865893005 2.8896e-05 deg
M 251.7132674286768 2.2483e-05 deg
tp 2459694.167864306027
(2022-Apr-24.66786431)
0.00010323 TDB
period 1641.202268552282
4.49
1.0527e-05
2.882e-08
d
yr
n .2193513906835865 1.4069e-09 deg/d
Q 2.977844214860085 1.2733e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1872  
   data-arc span      24400 days (66.80 yr)  
   first obs. used      1954-04-03  
   last obs. used      2021-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50746  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:25:17  

Additional Information
 Earth MOID = 1.45465 au 
 Jupiter MOID = 2.03708 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 13.8   n/a MPO502289  

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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