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18581 Batllo (1997 XV8)
Classification: Main-belt Asteroid          SPK-ID: 2018581
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 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0459119129290262 4.194e-08  
a 2.355376736892932 7.7304e-09 au
q 2.24723688523365 9.9345e-08 au
i 6.689831152595477 3.8532e-06 deg
node 309.3091745056974 2.9416e-05 deg
peri 225.8147399937358 4.629e-05 deg
M 23.82816347429054 3.4673e-05 deg
tp 2458913.106915244094
(2020-Mar-04.60691524)
0.00012724 TDB
period 1320.34978466014
3.61
6.5002e-06
1.78e-08
d
yr
n .2726550223149122 1.3423e-09 deg/d
Q 2.463516588552214 8.0853e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2230  
   data-arc span      24357 days (66.69 yr)  
   first obs. used      1953-10-09  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45638  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 18:23:30  

Additional Information
 Earth MOID = 1.25853 au 
 Jupiter MOID = 2.52808 au 
 T_jup = 3.544 
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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 13.8   n/a MPO416907  
diameter diameter 4.187 km 0.209 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.231   0.087 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18581 Batllo           Discovered 1997 Dec. 7 by the OCA-DLR Asteroid Survey at Caussols.
Valerie Batllo (b. 1967) works on cometary orbits at the Institut de Mécanique Céleste in Paris. She studies in particular how the short-period comets could be produced by encounters with the giant planets.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020427/MPCPages.arcLast Updated: 2003-10-02

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Alternate Designations
 1997 XV8 = 1991 EW8 = 1996 TZ58 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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