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JPL Small-Body Database Browser
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447698 (2007 DN21)
Classification: Main-belt Asteroid          SPK-ID: 2447698
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1252543255782478 1.1477e-07  
a 3.058036661220992 6.1939e-08 au
q 2.6750043416262 3.5408e-07 au
i 12.23296903597906 1.3825e-05 deg
node 344.7102597337714 3.7558e-05 deg
peri 161.8669441730819 5.417e-05 deg
M 108.5993741676598 4.4267e-05 deg
tp 2458011.266703455996
(2017-Sep-14.76670346)
0.00022989 TDB
period 1953.270802724483
5.35
5.9344e-05
1.625e-07
d
yr
n .18430624135571 5.5996e-09 deg/d
Q 3.441068980815785 6.9697e-08 au
  Orbit Determination Parameters
   # obs. used (total)      60  
   data-arc span      4096 days (11.21 yr)  
   first obs. used      2007-01-28  
   last obs. used      2018-04-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .68846  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 08:56:11  

Additional Information
 Earth MOID = 1.68938 au 
 Jupiter MOID = 1.56469 au 
 T_jup = 3.188 
[ 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 16.4   n/a MPO437740  

447698 (2007 DN21)          Discovered 2007-Jan-28 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-10-28

[ show close-approach data ]
Alternate Designations
 2007 DN21 = 2012 AM22 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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