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15678 (1981 DM)
Classification: Main-belt Asteroid          SPK-ID: 2015678
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08217694272232688 3.2992e-08  
a 2.359524460265872 8.604e-09 au
q 2.165625953842674 7.9005e-08 au
i 6.62959474617071 3.6369e-06 deg
node 262.531489607366 3.2109e-05 deg
peri 339.7883706115753 3.941e-05 deg
M 295.4394530816543 2.369e-05 deg
tp 2459437.910461756247
(2021-Aug-11.41046176)
8.7398e-05 TDB
period 1323.838943625216
3.62
7.2411e-06
1.983e-08
d
yr
n .2719364026368433 1.4874e-09 deg/d
Q 2.55342296668907 9.3111e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1696  
   data-arc span      15076 days (41.28 yr)  
   first obs. used      1979-11-26  
   last obs. used      2021-03-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5048  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:05:37  

Additional Information
 Earth MOID = 1.15206 au 
 Jupiter MOID = 2.46572 au 
 T_jup = 3.539 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.61   n/a E2021B10  

15678 (1981 DM)          Discovered 1981-Feb-28 by Bus, S. J. at Siding Spring
Reference: 20000726/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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