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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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2274102606723057 6.4432e-08  
a 2.616165247227387 2.7217e-08 au
q 2.02122242639358 1.6512e-07 au
i 15.16910112520643 7.1633e-06 deg
node 96.94435071140322 2.775e-05 deg
peri 166.0866789078971 3.3335e-05 deg
M 153.3565256103412 2.2357e-05 deg
tp 2458542.090717261019
(2019-Feb-27.59071726)
9.1441e-05 TDB
period 1545.596712253959
4.23
2.4119e-05
6.603e-08
d
yr
n .2329197501170978 3.6348e-09 deg/d
Q 3.211108068061193 3.3407e-08 au
  Orbit Determination Parameters
   # obs. used (total)      172  
   data-arc span      6781 days (18.57 yr)  
   first obs. used      2002-07-16  
   last obs. used      2021-02-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .61066  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 11:29:12  

Additional Information
 Earth MOID = 1.00648 au 
 Jupiter MOID = 1.90822 au 
 T_jup = 3.322 
[ show covariance matrix ]

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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