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72987 (2002 DL18)
Classification: Inner Main-belt Asteroid          SPK-ID: 2072987
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05032854693440226 5.3962e-08  
a 1.899310205846621 7.5148e-09 au
q 1.80372068300868 1.0114e-07 au
i 21.16007231116641 6.9855e-06 deg
node 3.884059453445433 1.4801e-05 deg
peri 45.17365803839422 8.0394e-05 deg
M 158.9664471196586 7.5075e-05 deg
tp 2458778.322341484574
(2019-Oct-21.82234148)
0.00019979 TDB
period 956.0756991137304
2.62
5.6742e-06
1.554e-08
d
yr
n .3765392220864052 2.2347e-09 deg/d
Q 1.994899728684562 7.893e-09 au
  Orbit Determination Parameters
   # obs. used (total)      558  
   data-arc span      8360 days (22.89 yr)  
   first obs. used      1997-04-10  
   last obs. used      2020-02-29  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5539  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:05:09  

Additional Information
 Earth MOID = .823208 au 
 Jupiter MOID = 3.12435 au 
 T_jup = 3.865 
[ 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 16.65   n/a E2021B10  

72987 (2002 DL18)          Discovered 2002-Feb-21 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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