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43464 (2001 AA9)
Classification: Main-belt Asteroid          SPK-ID: 2043464
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .141623766369338 3.6154e-08  
a 2.297292701496914 7.2216e-09 au
q 1.971941456658129 8.4553e-08 au
i 5.830920337202246 3.0935e-06 deg
node 249.5337697318662 3.8339e-05 deg
peri 89.90186464256557 4.055e-05 deg
M 77.2133622843163 1.1463e-05 deg
tp 2459123.719770944368
(2020-Oct-01.21977094)
4.0727e-05 TDB
period 1271.812022618967
3.48
5.997e-06
1.642e-08
d
yr
n .2830606989063315 1.3347e-09 deg/d
Q 2.622643946335698 8.2443e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1455  
   data-arc span      13487 days (36.93 yr)  
   first obs. used      1984-03-06  
   last obs. used      2021-02-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46955  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 21:05:10  

Additional Information
 Earth MOID = .972872 au 
 Jupiter MOID = 2.75116 au 
 T_jup = 3.574 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457516.5 (2016-May-08.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1417646270770505 3.6008e-08  
q 1.971589759571049 8.4229e-08 au
tp 2457852.968871360741
(2017-Apr-09.46887136)
4.2442e-05 TDB
node 249.5547475813009 3.8319e-05 deg
peri 90.21608895202594 4.0542e-05 deg
i 5.832420289437405 3.094e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1455  
   data-arc span      13487 days (36.93 yr)  
   first obs. used      1984-03-06  
   last obs. used      2021-02-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46955  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 21:05:10  

Additional Information
 Jupiter MOID = 2.75116 au 
 T_jup = 3.574 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.296574852860886E-15 -3.024896292572694E-15 -2.869307132556282E-13 1.440277337074498E-14 -1.089319226339122E-13 -3.355491063142523E-15
q -3.024896292572694E-15 7.094443430301694E-15 5.690648944199128E-13 -3.220217012993388E-14 2.199278682851042E-13 7.971651331791478E-15
tp -2.869307132556282E-13 5.690648944199128E-13 1.801298531294339E-9 -6.652751290898987E-12 5.767472359206749E-10 1.319929873186004E-12
node 1.440277337074498E-14 -3.220217012993388E-14 -6.652751290898987E-12 1.468336315648694E-9 -1.462741611414779E-9 2.412254920800191E-11
peri -1.089319226339122E-13 2.199278682851042E-13 5.767472359206749E-10 -1.462741611414779E-9 1.643648318195531E-9 -2.357778596388406E-11
i -3.355491063142523E-15 7.971651331791478E-15 1.319929873186004E-12 2.412254920800191E-11 -2.357778596388406E-11 9.573100898159172E-12

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.29   n/a E2021B10  
rotation period rot_per 101.649 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]

43464 (2001 AA9)          Discovered 2001-Jan-02 by LINEAR at Socorro
Reference: 20020624/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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