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2364 Seillier (1978 GD)
Classification: Main-belt Asteroid          SPK-ID: 2002364
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 .1404183398447566 4.124e-08  
a 3.172488571234124 1.9064e-08 au
q 2.727012992884964 1.3131e-07 au
i 10.70973884561159 4.4182e-06 deg
node 42.79956276774828 2.247e-05 deg
peri 167.8844718594484 2.6765e-05 deg
M 158.5238064491198 1.6389e-05 deg
tp 2458091.653545221286
(2017-Dec-04.15354522)
9.1144e-05 TDB
period 2063.946930427457
5.65
1.8604e-05
5.093e-08
d
yr
n .1744230894180219 1.5722e-09 deg/d
Q 3.617964149583283 2.1741e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2362  
   data-arc span      25175 days (68.93 yr)  
   first obs. used      1951-09-01  
   last obs. used      2020-08-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4437  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:49:51  

Additional Information
 Earth MOID = 1.72213 au 
 Jupiter MOID = 1.34971 au 
 T_jup = 3.159 
[ 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 11.3   n/a MPO319112  
diameter diameter 19.629 km 0.165 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 12.284 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Casalnuovo, G.B. (2015) Minor Planet Bull. 42, 139-141.]
geometric albedo albedo 0.103   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

2364 Seillier (1978 GD)          Discovered 1978-Apr-14 by Debehogne, H. at La Silla
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1978 GD = 1966 DX = 1971 BH = 1978 HA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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