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171809 (2001 DO86)
Classification: Main-belt Asteroid          SPK-ID: 2171809
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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1158346569866012 4.6116e-08  
a 2.317686900368659 1.2333e-08 au
q 2.049218433262117 1.0303e-07 au
i 3.323589725530976 3.7731e-06 deg
node 106.7521192396044 8.0156e-05 deg
peri 77.43869078972791 8.2003e-05 deg
M 250.1624500413271 1.891e-05 deg
tp 2459789.713945833356
(2022-Jul-29.21394583)
6.9476e-05 TDB
period 1288.785306602978
3.53
1.0287e-05
2.816e-08
d
yr
n .2793327935658265 2.2296e-09 deg/d
Q 2.586155367475202 1.3761e-08 au
  Orbit Determination Parameters
   # obs. used (total)      443  
   data-arc span      9748 days (26.69 yr)  
   first obs. used      1994-03-10  
   last obs. used      2020-11-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5769  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 20:50:08  

Additional Information
 Earth MOID = 1.05508 au 
 Jupiter MOID = 2.37136 au 
 T_jup = 3.569 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457929.5 (2017-Jun-25.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1148249922575373 4.6169e-08  
q 2.052344157439171 1.0304e-07 au
tp 2458500.928655148132
(2019-Jan-17.42865515)
6.4603e-05 TDB
node 106.7617477899303 8.0185e-05 deg
peri 77.50851335205813 8.2061e-05 deg
i 3.322648614259291 3.7708e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      443  
   data-arc span      9748 days (26.69 yr)  
   first obs. used      1994-03-10  
   last obs. used      2020-11-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5769  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 20:50:08  

Additional Information
 Jupiter MOID = 2.37136 au 
 T_jup = 3.569 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.131607845443477E-15 -4.734510993686996E-15 4.274494741333084E-13 -2.255316517416359E-14 1.050201369785744E-13 4.267639629148657E-16
q -4.734510993686996E-15 1.061674789938796E-14 -6.607671206481398E-13 4.9473572817956E-14 -1.677867858471999E-13 -9.30539449314363E-16
tp 4.274494741333084E-13 -6.607671206481398E-13 4.173509594227995E-9 -3.240021440556036E-11 1.147483217101217E-9 -7.389848152946432E-13
node -2.255316517416359E-14 4.9473572817956E-14 -3.240021440556036E-11 6.429713114510204E-9 -6.427242357630652E-9 5.14881926907435E-11
peri 1.050201369785744E-13 -1.677867858471999E-13 1.147483217101217E-9 -6.427242357630652E-9 6.734002611200837E-9 -5.162828927789019E-11
i 4.267639629148657E-16 -9.30539449314363E-16 -7.389848152946432E-13 5.14881926907435E-11 -5.162828927789019E-11 1.421920790051642E-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 17.34   n/a MPCxxxxx  

171809 (2001 DO86)          Discovered 2001-Feb-25 by Kusnirak, P. at Ondrejov
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

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Alternate Designations
 2001 DO86 = 2005 LP25 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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