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18547 (1997 AU5)
Classification: Main-belt Asteroid          SPK-ID: 2018547
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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04648393676669922 2.2232e-08  
a 2.974315082086938 1.5294e-08 au
q 2.836057207886969 6.8346e-08 au
i 9.604847468201182 2.1453e-06 deg
node 349.0614684903899 9.0171e-07 deg
peri 167.8704147967064 2.9216e-05 deg
M 210.2768890407961 3.2599e-05 deg
tp 2459979.729217876681
(2023-Feb-04.22921788)
0.0001719 TDB
period 1873.608667616057
5.13
1.4451e-05
3.956e-08
d
yr
n .1921425782354311 1.482e-09 deg/d
Q 3.112572956286907 1.6005e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1889  
   data-arc span      16029 days (43.89 yr)  
   first obs. used      1977-03-26  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47406  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:31:27  

Additional Information
 Earth MOID = 1.84491 au 
 Jupiter MOID = 1.86493 au 
 T_jup = 3.239 
[ 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 13.18   n/a E2021B10  
diameter diameter 7.906 km 0.173 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.123   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18547 (1997 AU5)          Discovered 1997-Jan-07 by Kobayashi, T. at Oizumi
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 AU5 = 1977 FU2 = 2000 RX103 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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