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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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458143.5 (2018-Jan-25.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2277859607826383 6.4354e-08  
q 2.019656692084129 1.6497e-07 au
tp 2458542.579422925148
(2019-Feb-28.07942293)
9.123e-05 TDB
node 96.95269053070938 2.7764e-05 deg
peri 166.1885457049227 3.3334e-05 deg
i 15.16709342239988 7.1618e-06 deg
  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
 Jupiter MOID = 1.90822 au 
 T_jup = 3.322 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.141394641266073E-15 -1.053437619904437E-14 2.326685644348896E-12 3.022747483459552E-14 3.260054463284489E-13 3.762676621058813E-15
q -1.053437619904437E-14 2.721519204584825E-14 -5.339331429192573E-12 -7.557407197714441E-14 -7.355762858276297E-13 -8.925130076226567E-15
tp 2.326685644348896E-12 -5.339331429192573E-12 8.322995728421742E-9 3.528415401329822E-11 1.724455946500256E-9 -3.041117853650778E-12
node 3.022747483459552E-14 -7.557407197714441E-14 3.528415401329822E-11 7.708396443215594E-10 -7.369777704419122E-10 3.740032390878639E-11
peri 3.260054463284489E-13 -7.355762858276297E-13 1.724455946500256E-9 -7.369777704419122E-10 1.111157607331446E-9 -3.673704968854702E-11
i 3.762676621058813E-15 -8.925130076226567E-15 -3.041117853650778E-12 3.740032390878639E-11 -3.673704968854702E-11 5.12919797642605E-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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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1907-Jan-03 08:25 00:05 Jupiter 1.99839376767525 1.9983909473272 1.99839658814245 3.71285014230861 3.59688099106402 2417578.850561354 4.55122902956412 805.097390857097 15.6675746715262 -80.5400174281274 1840327.28589437 T 16 CATAB v2.0f-lin.ifort 2021-Apr-14 11:29:12 2021-Apr-14 11:29
2071-Oct-17 16:11 00:02 Jupiter 1.98844902918035 1.98844761515446 1.98845044321246 3.06245598573867 2.92005030259707 2477767.174254454 2.38600877374637 331.528514926239 60.6057782732943 -80.8275300367006 2076100.07646117 T 16 CATAB v2.0f-lin.ifort 2021-Apr-14 11:29:12 2021-Apr-14 11:29
2131-Mar-02 04:28 00:05 Jupiter 1.97701421870183 1.97701172256117 1.97701671485261 3.1424780867229 3.0030481341896 2499451.685862064 4.96678858206385 353.556734617815 99.2421776550269 -72.3439338839481 2114739.14234388 T 16 CATAB v2.0f-lin.ifort 2021-Apr-14 11:29:12 2021-Apr-14 11:29
2190-Jul-15 01:16 00:08 Jupiter 1.9651597544369 1.96515624965561 1.96516325922467 3.21836241965905 3.08152840680693 2521136.552628572 7.52088735137014 320.89762108445 149.712403583512 -62.3142710350355 2039345.2297633 T 16 CATAB v2.0f-lin.ifort 2021-Apr-14 11:29:12 2021-Apr-14 11:29

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