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392013 (2009 AL9)
Classification: Main-belt Asteroid          SPK-ID: 2392013
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2274102598574054 6.4584e-08  
a 2.616165248004562 2.7229e-08 au
q 2.021222429125932 1.6556e-07 au
i 15.16910095385981 7.2659e-06 deg
node 96.94434962552971 2.8965e-05 deg
peri 166.0866792562946 3.4712e-05 deg
M 153.3565261800874 2.2813e-05 deg
tp 2458542.090714521526
(2019-Feb-27.59071452)
9.3554e-05 TDB
period 1545.596712942677
4.23
2.413e-05
6.606e-08
d
yr
n .2329197500133088 3.6363e-09 deg/d
Q 3.211108066883193 3.3421e-08 au
  Orbit Determination Parameters
   # obs. used (total)      168  
   data-arc span      6726 days (18.41 yr)  
   first obs. used      2002-07-16  
   last obs. used      2020-12-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6012  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 16:54:41  

Additional Information
 Earth MOID = 1.00648 au 
 Jupiter MOID = 1.90822 au 
 T_jup = 3.322 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458066.5 (2017-Nov-09.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2277451332620577 6.4499e-08  
q 2.019785164309077 1.6537e-07 au
tp 2458542.601969805427
(2019-Feb-28.10196981)
9.3355e-05 TDB
node 96.95230864783674 2.8979e-05 deg
peri 166.1881106675853 3.4714e-05 deg
i 15.16697034204028 7.2642e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      168  
   data-arc span      6726 days (18.41 yr)  
   first obs. used      2002-07-16  
   last obs. used      2020-12-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6012  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 16:54:41  

Additional Information
 Jupiter MOID = 1.90822 au 
 T_jup = 3.322 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.160140528019949E-15 -1.058393347219842E-14 2.41251273047126E-12 3.687247227296315E-14 3.433146694268928E-13 4.651537142966025E-15
q -1.058393347219842E-14 2.734706529841552E-14 -5.576370468322746E-12 -9.22650239402864E-14 -7.853268587053978E-13 -1.108842325593464E-14
tp 2.41251273047126E-12 -5.576370468322746E-12 8.71508393487939E-9 3.805379357521877E-11 1.830646437767731E-9 -2.979107540938499E-12
node 3.687247227296315E-14 -9.22650239402864E-14 3.805379357521877E-11 8.397927100473767E-10 -8.032000924650982E-10 4.748951381163749E-11
peri 3.433146694268928E-13 -7.853268587053978E-13 1.830646437767731E-9 -8.032000924650982E-10 1.205036112120633E-9 -4.652398076977325E-11
i 4.651537142966025E-15 -1.108842325593464E-14 -2.979107540938499E-12 4.748951381163749E-11 -4.652398076977325E-11 5.276815685722151E-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 16.4   n/a MPO437604  
diameter diameter 1.380 km 0.261 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.233   0.119 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

392013 (2009 AL9)          Discovered 2009-Jan-02 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2014-04-17

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Alternate Designations
 2009 AL9 = 2010 GN65 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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