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JPL Small-Body Database Browser
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56164 (1999 DW7)
Classification: Main-belt Asteroid          SPK-ID: 2056164
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06774825733445269 5.0675e-08  
a 2.649039168936048 1.6545e-08 au
q 2.469571381629924 1.3951e-07 au
i 14.25669412841708 5.5561e-06 deg
node 359.0211781037915 1.8038e-05 deg
peri 249.453959722934 7.3686e-05 deg
M 261.5045702915427 7.9084e-05 deg
tp 2459431.368331697616
(2021-Aug-04.86833170)
0.00034784 TDB
period 1574.820272070178
4.31
1.4754e-05
4.039e-08
d
yr
n .228597514513045 2.1416e-09 deg/d
Q 2.828506956242173 1.7666e-08 au
  Orbit Determination Parameters
   # obs. used (total)      906  
   data-arc span      9956 days (27.26 yr)  
   first obs. used      1992-10-02  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53386  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 09:15:27  

Additional Information
 Earth MOID = 1.49847 au 
 Jupiter MOID = 2.23206 au 
 T_jup = 3.344 
[ 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 14.4   n/a MPO378999  

56164 (1999 DW7)          Discovered 1999-Feb-18 by LONEOS at Anderson Mesa
Reference: 20030318/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 DW7 = 2001 QN105 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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