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305811 (2009 DH105)
Classification: Main-belt Asteroid          SPK-ID: 2305811
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1278624633633277 9.7894e-08  
a 2.743572336650417 2.6597e-08 au
q 2.392772419270814 2.6108e-07 au
i 2.860831631446131 1.0953e-05 deg
node 340.0312958046807 0.00014589 deg
peri 202.6538274667479 0.00015068 deg
M 165.1471655755241 3.4386e-05 deg
tp 2458239.049505175541
(2018-Apr-30.54950518)
0.00015848 TDB
period 1659.866078727494
4.54
2.4137e-05
6.608e-08
d
yr
n .2168849671751757 3.1538e-09 deg/d
Q 3.09437225403002 2.9998e-08 au
  Orbit Determination Parameters
   # obs. used (total)      149  
   data-arc span      8921 days (24.42 yr)  
   first obs. used      1995-01-29  
   last obs. used      2019-07-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58115  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:55:01  

Additional Information
 Earth MOID = 1.39563 au 
 Jupiter MOID = 1.87064 au 
 T_jup = 3.335 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456998.5 (2014-Dec-07.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .126121359956476 9.8224e-08  
q 2.399389889336582 2.6163e-07 au
tp 2456577.296772454822
(2013-Oct-11.79677245)
0.00016375 TDB
node 340.1761806054474 0.00014592 deg
peri 202.7060585890803 0.00015082 deg
i 2.860140572886043 1.0947e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      149  
   data-arc span      8921 days (24.42 yr)  
   first obs. used      1995-01-29  
   last obs. used      2019-07-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58115  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:55:01  

Additional Information
 Jupiter MOID = 1.87064 au 
 T_jup = 3.335 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.647971818802187E-15 -2.560926056903231E-14 -5.389990588914033E-12 -8.048654135145451E-15 -9.463667095530861E-13 -1.511137349118301E-15
q -2.560926056903231E-14 6.844933740034866E-14 1.405405274440934E-11 2.148567476010201E-14 2.478003619511327E-12 4.740261012377808E-15
tp -5.389990588914033E-12 1.405405274440934E-11 2.681493420253094E-8 1.238287323618237E-11 6.257075111592169E-9 7.575588368191617E-12
node -8.048654135145451E-15 2.148567476010201E-14 1.238287323618237E-11 2.12927934911583E-8 -2.126208643875292E-8 -2.803240918202715E-10
peri -9.463667095530861E-13 2.478003619511327E-12 6.257075111592169E-9 -2.126208643875292E-8 2.274549937342382E-8 2.819401408573245E-10
i -1.511137349118301E-15 4.740261012377808E-15 7.575588368191617E-12 -2.803240918202715E-10 2.819401408573245E-10 1.198261984997699E-10

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 16.8   n/a MPO397067  

305811 (2009 DH105)          Discovered 2009-Feb-26 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

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Alternate Designations
 2009 DH105 = 2004 BU63 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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