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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04587769675823766 4.1818e-08  
a 2.355601993299221 7.6448e-09 au
q 2.24753239936754 9.8906e-08 au
i 6.689855243243206 3.8314e-06 deg
node 309.3083917267364 2.9409e-05 deg
peri 225.9997427274319 4.6275e-05 deg
M 78.18306145137166 3.4597e-05 deg
tp 2458913.711674559071
(2020-Mar-05.21167456)
0.00012713 TDB
period 1320.539196625733
3.62
6.4284e-06
1.76e-08
d
yr
n .2726159139538448 1.3271e-09 deg/d
Q 2.463671587230903 7.9955e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2269  
   data-arc span      24420 days (66.86 yr)  
   first obs. used      1953-10-09  
   last obs. used      2020-08-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45547  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:14:07  

Additional Information
 Earth MOID = 1.25841 au 
 Jupiter MOID = 2.52691 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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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1982-May-12 19:59 < 00:01 Thisb 0.0427951636889163 0.0427921917245834 0.0427981356812841 3.39833267499307 3.3983326281102 2445102.332380964 0.982738577792384 158.710569851895 42.5673143554229 -21.9016494296152 67385.7048962223 T 36 CATAB v2.0f-lin.ifort 2020-Nov-13 02:14:12 2020-Nov-13 02:14

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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