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212992 (2009 DW56)
Classification: Main-belt Asteroid          SPK-ID: 2212992
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06407660721071029 6.0327e-08  
a 2.661547998388464 2.2805e-08 au
q 2.491005032723274 1.6607e-07 au
i 3.937302067705147 5.2559e-06 deg
node 74.90541376408362 8.9019e-05 deg
peri 261.3317758216131 9.9483e-05 deg
M 45.02730299969586 4.2512e-05 deg
tp 2458802.131223410076
(2019-Nov-14.63122341)
0.00018766 TDB
period 1585.987940980052
4.34
2.0384e-05
5.581e-08
d
yr
n .2269878545088685 2.9173e-09 deg/d
Q 2.832090964053653 2.4266e-08 au
  Orbit Determination Parameters
   # obs. used (total)      269  
   data-arc span      5788 days (15.85 yr)  
   first obs. used      2003-12-28  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57104  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 16:54:09  

Additional Information
 Earth MOID = 1.4849 au 
 Jupiter MOID = 2.39485 au 
 T_jup = 3.379 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457217.5 (2015-Jul-14.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06613628370609978 6.0518e-08  
q 2.486162593988416 1.6713e-07 au
tp 2457216.695874188928
(2015-Jul-13.19587419)
0.00018513 TDB
node 74.92701220382531 8.9084e-05 deg
peri 261.6115963649604 9.8866e-05 deg
i 3.936818486559729 5.253e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      269  
   data-arc span      5788 days (15.85 yr)  
   first obs. used      2003-12-28  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57104  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 16:54:09  

Additional Information
 Jupiter MOID = 2.39485 au 
 T_jup = 3.379 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.66248684168835E-15 -1.003469864210081E-14 2.243911397193842E-12 3.624867165529901E-14 5.93359634474079E-13 -2.849630166518489E-15
q -1.003469864210081E-14 2.793323311714269E-14 -7.004659620757937E-12 -9.909265677321663E-14 -1.820484103315149E-12 8.154549039556712E-15
tp 2.243911397193842E-12 -7.004659620757937E-12 3.427460662201835E-8 3.786994859434363E-11 7.983074645836306E-9 1.04660461395599E-12
node 3.624867165529901E-14 -9.909265677321663E-14 3.786994859434363E-11 7.935883622856352E-9 -7.906948732542463E-9 -1.25952598220955E-11
peri 5.93359634474079E-13 -1.820484103315149E-12 7.983074645836306E-9 -7.906948732542463E-9 9.774581852485605E-9 1.273549709752207E-11
i -2.849630166518489E-15 8.154549039556712E-15 1.04660461395599E-12 -1.25952598220955E-11 1.273549709752207E-11 2.75939392998365E-11

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 16.2   n/a MPO440128  

212992 (2009 DW56)          Discovered 2009-Feb-22 by Spacewatch at Kitt Peak
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

[ show close-approach data ]
Alternate Designations
 2009 DW56 = 2005 JA72 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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