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43773 (1989 AJ)
Classification: Main-belt Asteroid          SPK-ID: 2043773
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1978163671077005 3.481e-08  
a 2.78519826984711 1.1601e-08 au
q 2.234240466431302 1.0082e-07 au
i 6.216849255936573 3.287e-06 deg
node 289.9732403886687 3.8953e-05 deg
peri 159.362596081332 4.0694e-05 deg
M 322.1510321079237 1.1045e-05 deg
tp 2459378.998323865305
(2021-Jun-13.49832387)
5.2436e-05 TDB
period 1697.784646988029
4.65
1.0608e-05
2.904e-08
d
yr
n .212041026898589 1.3248e-09 deg/d
Q 3.336156073262918 1.3896e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1801  
   data-arc span      11755 days (32.18 yr)  
   first obs. used      1989-01-02  
   last obs. used      2021-03-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46962  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:22:18  

Additional Information
 Earth MOID = 1.25176 au 
 Jupiter MOID = 1.87676 au 
 T_jup = 3.294 
[ 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 14.11   n/a E2021B10  
diameter diameter 9.025 km 2.440 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
rotation period rot_per 7.553 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.063   0.071 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

43773 (1989 AJ)          Discovered 1989-Jan-04 by Arai, M., Mori, H. at Yorii
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1989 AJ = 2001 MF30 = 2001 QZ266 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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