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136818 Selqet (1997 MW1)
Classification: Aten [NEO]          SPK-ID: 2136818
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB
Reference: JPL 50 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3465010058656257 9.4838e-08  
a .9377230620907059 2.4422e-09 AU
q .6128010778528817 8.8694e-08 AU
i 12.77129759838995 9.325e-06 deg
node 260.0112319504748 2.1809e-05 deg
peri 203.7573173791759 2.812e-05 deg
M 315.2878185296773 3.0372e-05 deg
tp 2456441.693973088092
(2013-May-29.19397309)		 2.8052e-05 JED
period 331.6731553694446
0.91		 1.2957e-06
3.547e-09		 d
yr
n 1.085405900875525 4.2402e-09 deg/d
Q 1.26264504632853 3.2884e-09 AU
   Orbit Determination Parameters
   # obs. used (total)      424  
   data-arc span      4053 days (11.10 yr)  
   first obs. used      1997-06-29  
   last obs. used      2008-08-03  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      0  
   fit RMS      .52321  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Apr-29 15:46:12  

Additional Information
 Earth MOID = .113392 AU 
 T_jup = 6.326 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 19.06 mag .85389 50 autocmod 2.5c

136818 Selqet           Discovered 1997 June 29 by R. Tucker at the Goodricke-Pigott Observatory.
Selqet was the ancient Egyptian goddess of magic and protector of the other gods from the destroyer, Apep. She was one of the four guardians of the deceased. Her aid was beseeched by those afflicted by scorpion or other stings. The scorpion was her sacred creature.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070730/MPCPages.arcLast Updated: 2007-08-07

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