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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 91 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2963350111237037 8.4579e-09  
a .9474868192280582 6.5323e-10 au
q .6667133021125489 8.0484e-09 au
i 48.96472602874172 1.8461e-06 deg
node 58.53557109794617 4.7312e-07 deg
peri 37.43038497763256 1.6033e-06 deg
M 352.40332045073 2.8458e-06 deg
tp 2459403.608525057984
(2021-Jul-08.10852506)
2.6694e-06 TDB
period 336.8667855839986
0.92
3.4837e-07
9.538e-10
d
yr
n 1.068671698742567 1.1052e-09 deg/d
Q 1.228260336343568 8.468e-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 = .112823 au 
 Jupiter MOID = 4.16248 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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