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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2276035225504502 6.471e-08  
a 2.615638345333253 2.7231e-08 au
q 2.020309844217374 1.6591e-07 au
i 15.16973125434051 7.3566e-06 deg
node 96.94189044879981 2.9637e-05 deg
peri 166.0547700219081 3.5487e-05 deg
M 106.797159404352 2.2768e-05 deg
tp 2458542.123682951251
(2019-Feb-27.62368295)
9.4836e-05 TDB
period 1545.129805492049
4.23
2.4129e-05
6.606e-08
d
yr
n .2329901337223622 3.6385e-09 deg/d
Q 3.210966846449133 3.3429e-08 au
  Orbit Determination Parameters
   # obs. used (total)      160  
   data-arc span      6697 days (18.34 yr)  
   first obs. used      2002-07-16  
   last obs. used      2020-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60555  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 01:12:05  

Additional Information
 Earth MOID = 1.00735 au 
 Jupiter MOID = 1.90916 au 
 T_jup = 3.322 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458040.5 (2017-Oct-14.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2277282463675784 6.4638e-08  
q 2.019845138700956 1.6577e-07 au
tp 2458542.612292249483
(2019-Feb-28.11229225)
9.4733e-05 TDB
node 96.95211180681405 2.965e-05 deg
peri 166.1877849357528 3.5498e-05 deg
i 15.16688525698009 7.3547e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      160  
   data-arc span      6697 days (18.34 yr)  
   first obs. used      2002-07-16  
   last obs. used      2020-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60555  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 01:12:05  

Additional Information
 Jupiter MOID = 1.90916 au 
 T_jup = 3.322 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.17803416518989E-15 -1.063261771383462E-14 2.481043991705854E-12 3.823519954808454E-14 3.609677110083623E-13 4.828209990876508E-15
q -1.063261771383462E-14 2.747972249610259E-14 -5.764587692685848E-12 -9.576539597221138E-14 -8.341228352110379E-13 -1.151607676224262E-14
tp 2.481043991705854E-12 -5.764587692685848E-12 8.974434917860784E-9 4.107755489713628E-11 1.899538618034008E-9 -2.687542299320793E-12
node 3.823519954808454E-14 -9.576539597221138E-14 4.107755489713628E-11 8.791134137890127E-10 -8.403791233577584E-10 5.470054089809696E-11
peri 3.609677110083623E-13 -8.341228352110379E-13 1.899538618034008E-9 -8.403791233577584E-10 1.260075191655523E-9 -5.341548526799534E-11
i 4.828209990876508E-15 -1.151607676224262E-14 -2.687542299320793E-12 5.470054089809696E-11 -5.341548526799534E-11 5.409096888472524E-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

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