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18472 Hatada (1995 VA1)
Classification: Main-belt Asteroid          SPK-ID: 2018472
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2305708736371989 3.0635e-08  
a 2.852794259755691 1.1049e-08 au
q 2.195022994976635 9.0047e-08 au
i 1.501262314104073 4.0523e-06 deg
node 310.7711426360639 0.00017025 deg
peri 116.1220550347498 0.00017076 deg
M 58.61960068630298 1.1872e-05 deg
tp 2458913.920936074599
(2020-Mar-05.42093607)
5.7542e-05 TDB
period 1759.965298386116
4.82
1.0224e-05
2.799e-08
d
yr
n .2045494876121246 1.1883e-09 deg/d
Q 3.510565524534746 1.3596e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1380  
   data-arc span      16103 days (44.09 yr)  
   first obs. used      1976-12-16  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49088  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:38:27  

Additional Information
 Earth MOID = 1.20886 au 
 Jupiter MOID = 1.81461 au 
 T_jup = 3.264 
[ 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 14.53   n/a E2021B10  

18472 Hatada           Discovered 1995 Nov. 12 by K. Endate and K. Watanabe at Kitami.
Naoki Hatada (b. 1967) has been the editor of the Inagawa Observatory web site since 2003. He supports the organization of local star parties for amateur astronomers, and is a member of the Oriental Astronomical Association.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2014-08-10Last Updated: 2014-08-13

[ show close-approach data ]
Alternate Designations
 1995 VA1 = 1976 YG2 = 1987 DL3 = 1992 EO25 = 2019 UM15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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