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5381 Sekhmet (1991 JY)
Classification: Aten [NEO]          SPK-ID: 2005381
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 91 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2963378076063454 8.4576e-09  
a .9474829562845586 6.5381e-10 au
q .6667079342748137 8.048e-09 au
i 48.96592222994115 1.8461e-06 deg
node 58.53834726758843 4.7318e-07 deg
peri 37.4278610587648 1.6032e-06 deg
M 142.942681778411 2.6559e-06 deg
tp 2459066.743479852111
(2020-Aug-05.24347985)
2.3662e-06 TDB
period 336.8647254560789
0.92
3.4868e-07
9.546e-10
d
yr
n 1.068678234304878 1.1062e-09 deg/d
Q 1.228257978294303 8.4756e-10 au
  Orbit Determination Parameters
   # obs. used (total)      376  
   # delay obs. used      1  
   # Doppler obs. used      0  
   data-arc span      9438 days (25.84 yr)  
   first obs. used      1991-05-14  
   last obs. used      2017-03-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .37794  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 17:28:43  

Additional Information
 Earth MOID = .1112 au 
 Jupiter MOID = 4.16162 au 
 T_jup = 6.027 
[ 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 16.6   n/a MPO337298  
diameter diameter 0.935 km 0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
rotation period rot_per 2.8233 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Warner, B.D.; Harris, A.W. (2014) Minor Planet Bull. 41, 224-226.]
geometric albedo albedo 0.507   0.063 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

5381 Sekhmet (1991 JY)          Discovered 1991-May-14 by Shoemaker, C. S. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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