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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04616414542377351 4.8954e-08  
a 2.355939192972593 9.6512e-09 au
q 2.247179273458638 1.1874e-07 au
i 6.68913109427691 4.3741e-06 deg
node 309.309020728963 3.0953e-05 deg
peri 225.6912988497234 5.2071e-05 deg
M 274.9145849961315 4.3346e-05 deg
tp 2458912.674311952864
(2020-Mar-04.17431195)
0.00015953 TDB
period 1320.822755555948
3.62
8.1162e-06
2.222e-08
d
yr
n .2725573877991466 1.6748e-09 deg/d
Q 2.464699112486547 1.0097e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1865  
   data-arc span      24165 days (66.16 yr)  
   first obs. used      1953-10-09  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48495  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 00:29:44  

Additional Information
 Earth MOID = 1.25893 au 
 Jupiter MOID = 2.52836 au 
 T_jup = 3.544 
[ 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 13.8   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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