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17540 (1993 FX81)
Classification: Main-belt Asteroid          SPK-ID: 2017540
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1217286022759272 4.857e-08  
a 2.941872209026743 1.6276e-08 au
q 2.583762216947523 1.4339e-07 au
i 6.621505597242222 4.1076e-06 deg
node 83.01441670159255 4.4787e-05 deg
peri 72.42531511626346 4.8465e-05 deg
M 166.4153497835997 1.7869e-05 deg
tp 2458148.528604661230
(2018-Jan-30.02860466)
9.1415e-05 TDB
period 1843.03733231815
5.05
1.5295e-05
4.188e-08
d
yr
n .195329738409149 1.621e-09 deg/d
Q 3.299982201105963 1.8257e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1687  
   data-arc span      13584 days (37.19 yr)  
   first obs. used      1982-01-20  
   last obs. used      2019-03-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47205  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 22:21:02  

Additional Information
 Earth MOID = 1.60353 au 
 Jupiter MOID = 1.72888 au 
 T_jup = 3.251 
[ 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 12.9   n/a MPO358800  
diameter diameter 7.043 km 0.370 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.356   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17540 (1993 FX81)          Discovered 1993-Mar-18 by UESAC at La Silla
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1993 FX81 = 1982 BL8 = 1986 WZ6 = 1996 XX18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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