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18597 (1998 BE8)
Classification: Main-belt Asteroid          SPK-ID: 2018597
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 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1533977939242998 2.865e-08  
a 2.205783722766944 5.7122e-09 au
q 1.867421365820365 6.3357e-08 au
i 4.055495136644175 4.139e-06 deg
node 342.7958158447232 4.2215e-05 deg
peri 65.56130753954274 4.4341e-05 deg
M 66.44599126959743 1.381e-05 deg
tp 2458979.644050832430
(2020-May-10.14405083)
4.5599e-05 TDB
period 1196.582971841442
3.28
4.6481e-06
1.273e-08
d
yr
n .3008566965030348 1.1687e-09 deg/d
Q 2.544146079713522 6.5884e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1887  
   data-arc span      24219 days (66.31 yr)  
   first obs. used      1954-11-23  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49569  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:32:53  

Additional Information
 Earth MOID = .880609 au 
 Jupiter MOID = 2.82478 au 
 T_jup = 3.643 
[ 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 14.6   n/a MPO337415  
diameter diameter 3.035 km 0.516 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.304   0.115 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

18597 (1998 BE8)          Discovered 1998-Jan-25 by Kobayashi, T. at Oizumi
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 BE8 = 1988 BD1 = 1990 VA10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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