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21223 (1995 DL)
Classification: Main-belt Asteroid          SPK-ID: 2021223
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1055110965881104 4.6809e-08  
a 3.164905766482794 1.8617e-08 au
q 2.83097308846316 1.4608e-07 au
i 4.284599048806202 5.156e-06 deg
node 348.2063244579234 4.3418e-05 deg
peri 201.0251950358882 4.6608e-05 deg
M 215.1371209896267 1.9545e-05 deg
tp 2460224.049944141468
(2023-Oct-06.54994414)
0.00011537 TDB
period 2056.551560525008
5.63
1.8146e-05
4.968e-08
d
yr
n .1750503157373293 1.5445e-09 deg/d
Q 3.498838444502428 2.0581e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1828  
   data-arc span      9483 days (25.96 yr)  
   first obs. used      1995-02-21  
   last obs. used      2021-02-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .496  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:41:44  

Additional Information
 Earth MOID = 1.83302 au 
 Jupiter MOID = 1.46841 au 
 T_jup = 3.191 
[ 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 13.47   n/a E2021B10  

21223 (1995 DL)          Discovered 1995-Feb-21 by Kobayashi, T. at Oizumi
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1995 DL = 1998 TF19 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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