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305809 (2009 DQ100)
Classification: Main-belt Asteroid          SPK-ID: 2305809
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1137264618015049 4.6454e-08  
a 2.726382691659618 2.7706e-08 au
q 2.416320834620306 1.2887e-07 au
i 5.613955263537762 6.2958e-06 deg
node 46.23364138687219 6.5554e-05 deg
peri 229.3668030575619 7.4685e-05 deg
M 89.8305373907049 3.3158e-05 deg
tp 2458590.201293473672
(2019-Apr-16.70129347)
0.00015242 TDB
period 1644.290890825304
4.50
2.5064e-05
6.862e-08
d
yr
n .2189393628637744 3.3373e-09 deg/d
Q 3.036444548698929 3.0856e-08 au
  Orbit Determination Parameters
   # obs. used (total)      204  
   data-arc span      6615 days (18.11 yr)  
   first obs. used      2001-07-14  
   last obs. used      2019-08-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56066  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:55:01  

Additional Information
 Earth MOID = 1.4047 au 
 Jupiter MOID = 2.06687 au 
 T_jup = 3.340 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457288.5 (2015-Sep-23.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1139324924758575 4.6279e-08  
q 2.416711583114807 1.2876e-07 au
tp 2456948.777762484187
(2014-Oct-18.27776248)
0.00015937 TDB
node 46.25305652356809 6.5505e-05 deg
peri 230.1572383227974 7.4655e-05 deg
i 5.616304618953762 6.2989e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      204  
   data-arc span      6615 days (18.11 yr)  
   first obs. used      2001-07-14  
   last obs. used      2019-08-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56066  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:55:01  

Additional Information
 Jupiter MOID = 2.06687 au 
 T_jup = 3.340 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.141710619347493E-15 -5.847655234358232E-15 4.610290014623028E-13 2.189615399452725E-14 5.991683483047827E-14 -3.118621042620249E-15
q -5.847655234358232E-15 1.658004609179261E-14 -2.602534518679727E-12 -6.003966438492031E-14 -4.381780885581945E-13 9.040203721148774E-15
tp 4.610290014623028E-13 -2.602534518679727E-12 2.539812416576316E-8 1.648352044422494E-11 5.751679557922362E-9 -1.902711137428477E-12
node 2.189615399452725E-14 -6.003966438492031E-14 1.648352044422494E-11 4.290940410197537E-9 -4.26655861280614E-9 -1.25970090325341E-10
peri 5.991683483047827E-14 -4.381780885581945E-13 5.751679557922362E-9 -4.26655861280614E-9 5.573385128052338E-9 1.250668557272232E-10
i -3.118621042620249E-15 9.040203721148774E-15 -1.902711137428477E-12 -1.25970090325341E-10 1.250668557272232E-10 3.967665602981503E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.2   n/a MPO437357  

305809 (2009 DQ100)          Discovered 2009-Feb-26 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

Alternate Designations
 2009 DQ100 = 2005 JC165 = 2006 SA48 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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