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181301 (2006 QD9)
Classification: Main-belt Asteroid          SPK-ID: 2181301
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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1685226352900348 4.4862e-08  
a 2.687167133290294 1.7983e-08 au
q 2.234318646523445 1.2121e-07 au
i 10.85329565376717 7.0278e-06 deg
node 330.0282012490508 2.6266e-05 deg
peri 43.27824408641862 3.4058e-05 deg
M 108.6400257368807 2.0747e-05 deg
tp 2458910.956880260418
(2020-Mar-02.45688026)
9.1973e-05 TDB
period 1608.942210024815
4.41
1.6151e-05
4.422e-08
d
yr
n .2237494906634637 2.246e-09 deg/d
Q 3.140015620057142 2.1013e-08 au
  Orbit Determination Parameters
   # obs. used (total)      252  
   data-arc span      6667 days (18.25 yr)  
   first obs. used      2002-10-06  
   last obs. used      2021-01-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50578  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:30:03  

Additional Information
 Earth MOID = 1.24585 au 
 Jupiter MOID = 2.37782 au 
 T_jup = 3.328 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457911.5 (2017-Jun-07.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1700847749461731 4.5417e-08  
q 2.228957324535294 1.2304e-07 au
tp 2457299.335105271856
(2015-Oct-03.83510527)
8.8617e-05 TDB
node 330.2569561676679 2.6259e-05 deg
peri 42.45710786144161 3.3782e-05 deg
i 10.86277931493102 7.0261e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      252  
   data-arc span      6667 days (18.25 yr)  
   first obs. used      2002-10-06  
   last obs. used      2021-01-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50578  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:30:03  

Additional Information
 Jupiter MOID = 2.37782 au 
 T_jup = 3.328 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.06271794256573E-15 -5.546952234671869E-15 -1.695696899121385E-12 1.305332598858521E-15 -4.00787463046803E-13 -1.215706992319593E-15
q -5.546952234671869E-15 1.513848242881852E-14 4.549154969720882E-12 -5.213252762809233E-15 1.098889122644342E-12 4.100931002523049E-15
tp -1.695696899121385E-12 4.549154969720882E-12 7.852931466267501E-9 -1.903291020898511E-12 1.90372403610437E-9 -2.517669937354882E-12
node 1.305332598858521E-15 -5.213252762809233E-15 -1.903291020898511E-12 6.895349976917411E-10 -6.761351148790646E-10 -5.944735282011924E-11
peri -4.00787463046803E-13 1.098889122644342E-12 1.90372403610437E-9 -6.761351148790646E-10 1.141239106299222E-9 5.762376843198528E-11
i -1.215706992319593E-15 4.100931002523049E-15 -2.517669937354882E-12 -5.944735282011924E-11 5.762376843198528E-11 4.936612198483692E-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 16.59   n/a MPCxxxxx  

181301 (2006 QD9)          Discovered 2006-Aug-19 by Spacewatch at Kitt Peak
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

Alternate Designations
 2006 QD9 = 2004 CE55 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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