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5378 Ellyett (1991 GD)
Classification: Inner Main-belt Asteroid          SPK-ID: 2005378
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08280839256027148 4.1241e-08  
a 1.934181030645951 4.9614e-09 au
q 1.77401460857759 8.1211e-08 au
i 19.11755412551961 5.335e-06 deg
node 249.8455229729718 1.1172e-05 deg
peri 206.7396113968922 3.6136e-05 deg
M 27.03473683176451 3.3423e-05 deg
tp 2458926.715735597379
(2020-Mar-18.21573560)
9.1182e-05 TDB
period 982.5261237140685
2.69
3.7804e-06
1.035e-08
d
yr
n .3664024714571009 1.4098e-09 deg/d
Q 2.094347452714311 5.3723e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1930  
   data-arc span      16452 days (45.04 yr)  
   first obs. used      1975-04-07  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .35707  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 02:20:30  

Additional Information
 Earth MOID = .798954 au 
 Jupiter MOID = 3.15506 au 
 T_jup = 3.838 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.8   n/a MPO384802  
diameter diameter 2.957 km 0.102 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 47.32 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:
[Warner, B.D. (2012) Minor Planet Bull. 39, 158-167.]
geometric albedo albedo 0.499   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

5378 Ellyett (1991 GD)          Discovered 1991-Apr-09 by McNaught, R. H. at Siding Spring
Reference: DISCOVERY.DBLast Updated: 2003-08-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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