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18543 (1997 AE)
Classification: Main-belt Asteroid          SPK-ID: 2018543
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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1249420056858052 1.4593e-08  
a 2.718230224453821 1.1938e-08 au
q 2.378609088294784 4.448e-08 au
i 7.467676694816705 3.9677e-07 deg
node 311.4133600489979 3.0392e-06 deg
peri 358.1971835381837 8.0725e-06 deg
M 280.4075890729553 1.0321e-05 deg
tp 2459562.406965507202
(2021-Dec-13.90696551)
4.7713e-05 TDB
period 1636.921234890283
4.48
1.0784e-05
2.952e-08
d
yr
n .2199250595121821 1.4488e-09 deg/d
Q 3.057851360612859 1.343e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2252  
   data-arc span      8811 days (24.12 yr)  
   first obs. used      1997-01-02  
   last obs. used      2021-02-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45482  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:31:22  

Additional Information
 Earth MOID = 1.3621 au 
 Jupiter MOID = 2.19455 au 
 T_jup = 3.336 
[ 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 13.34   n/a E2021B10  
diameter diameter 5.603 km 0.277 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 10.970 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.]
geometric albedo albedo 0.204   0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18543 (1997 AE)          Discovered 1997-Jan-02 by Kobayashi, T. at Oizumi
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 AE = 1998 FS110 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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