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305801 (2009 DD90)
Classification: Main-belt Asteroid          SPK-ID: 2305801
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1078512960622049 6.083e-08  
a 2.598990066249844 2.3565e-08 au
q 2.318685619152002 1.6448e-07 au
i 10.1840016304535 7.6835e-06 deg
node 170.4706141511446 4.3501e-05 deg
peri 251.2635834740781 6.3187e-05 deg
M 18.32793679136748 4.2344e-05 deg
tp 2459122.585832645530
(2020-Sep-30.08583265)
0.00018031 TDB
period 1530.401406710457
4.19
2.0814e-05
5.699e-08
d
yr
n .2352324027026394 3.1993e-09 deg/d
Q 2.879294513347685 2.6107e-08 au
  Orbit Determination Parameters
   # obs. used (total)      126  
   data-arc span      5786 days (15.84 yr)  
   first obs. used      2005-03-10  
   last obs. used      2021-01-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55289  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 05:56:32  

Additional Information
 Earth MOID = 1.35301 au 
 Jupiter MOID = 2.44552 au 
 T_jup = 3.385 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457524.5 (2016-May-16.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .107388282711866 5.9733e-08  
q 2.319914427960868 1.6099e-07 au
tp 2457586.389990807080
(2016-Jul-16.88999081)
0.00018906 TDB
node 170.6101392136274 4.3428e-05 deg
peri 249.9092607450114 6.3569e-05 deg
i 10.19224518137659 7.6855e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      126  
   data-arc span      5786 days (15.84 yr)  
   first obs. used      2005-03-10  
   last obs. used      2021-01-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55289  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 05:56:32  

Additional Information
 Jupiter MOID = 2.44552 au 
 T_jup = 3.385 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.568027016723274E-15 -9.539432356890789E-15 4.294105530574313E-12 1.977680460943171E-14 1.063082834458248E-12 -1.483443759921288E-14
q -9.539432356890789E-15 2.591694536527039E-14 -1.256354869341352E-11 -5.706497691101739E-14 -3.108484758099684E-12 4.192566616437655E-14
tp 4.294105530574313E-12 -1.256354869341352E-11 3.574542001342345E-8 8.749694331676545E-11 8.852292738452953E-9 -2.971493729951645E-11
node 1.977680460943171E-14 -5.706497691101739E-14 8.749694331676545E-11 1.885952833414514E-9 -1.832614307243365E-9 -1.303566084427353E-10
peri 1.063082834458248E-12 -3.108484758099684E-12 8.852292738452953E-9 -1.832614307243365E-9 4.04102815598884E-9 1.206456870105845E-10
i -1.483443759921288E-14 4.192566616437655E-14 -2.971493729951645E-11 -1.303566084427353E-10 1.206456870105845E-10 5.906676181299231E-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 17.1   n/a MPO446456  

305801 (2009 DD90)          Discovered 2009-Feb-26 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

Alternate Designations
 2009 DD90 = 2005 FF14 = 2007 RG245 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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