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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 ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .107652843053617 6.6265e-08  
a 2.598405052218345 3.6997e-08 au
q 2.318679360942158 1.8923e-07 au
i 10.18436328044839 1.1488e-05 deg
node 170.4744918706364 4.5857e-05 deg
peri 251.2672691066775 7.8795e-05 deg
M 331.2650666633887 6.9108e-05 deg
tp 2459122.614264494730
(2020-Sep-30.11426449)
0.00029497 TDB
period 1529.884712211662
4.19
3.2675e-05
8.946e-08
d
yr
n .2353118487468051 5.0257e-09 deg/d
Q 2.878130743494532 4.098e-08 au
  Orbit Determination Parameters
   # obs. used (total)      101  
   data-arc span      5253 days (14.38 yr)  
   first obs. used      2005-03-10  
   last obs. used      2019-07-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58761  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:55:01  

Additional Information
 Earth MOID = 1.35375 au 
 Jupiter MOID = 2.44652 au 
 T_jup = 3.385 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456996.5 (2014-Dec-05.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1076855586097997 6.6036e-08  
q 2.31925214675685 1.8922e-07 au
tp 2457586.308839551588
(2016-Jul-16.80883955)
0.00027989 TDB
node 170.6147423899049 4.5788e-05 deg
peri 249.9158403036282 7.8904e-05 deg
i 10.19131465601141 1.1492e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      101  
   data-arc span      5253 days (14.38 yr)  
   first obs. used      2005-03-10  
   last obs. used      2019-07-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58761  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:55:01  

Additional Information
 Jupiter MOID = 2.44652 au 
 T_jup = 3.385 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.360721567404163E-15 -1.233919514334649E-14 -1.488286337963149E-12 -2.392787732447956E-14 -1.285020214434942E-13 4.552629786920988E-15
q -1.233919514334649E-14 3.58049062089532E-14 7.893054487421221E-12 6.649260668016254E-14 1.138903358624284E-12 -8.213099712910705E-15
tp -1.488286337963149E-12 7.893054487421221E-12 7.833747109956914E-8 1.524592953999663E-11 1.801840655138426E-8 6.128551267409084E-11
node -2.392787732447956E-14 6.649260668016254E-14 1.524592953999663E-11 2.096506186468291E-9 -2.059569512319332E-9 -2.526963609345684E-10
peri -1.285020214434942E-13 1.138903358624284E-12 1.801840655138426E-8 -2.059569512319332E-9 6.225769716768531E-9 2.630496253070076E-10
i 4.552629786920988E-15 -8.213099712910705E-15 6.128551267409084E-11 -2.526963609345684E-10 2.630496253070076E-10 1.32062740306137E-10

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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