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227259 (2005 SR91)
Classification: Main-belt Asteroid          SPK-ID: 2227259
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .247253367218823 5.2757e-08  
a 2.628828038301917 1.4747e-08 au
q 1.978841453992515 1.3453e-07 au
i 5.925009243103991 5.4581e-06 deg
node 198.2188311135923 5.6625e-05 deg
peri 231.9168580722185 5.8232e-05 deg
M 172.6319048067009 1.239e-05 deg
tp 2458453.947668878841
(2018-Dec-01.44766888)
5.094e-05 TDB
period 1556.831800613864
4.26
1.31e-05
3.587e-08
d
yr
n .2312388530720215 1.9458e-09 deg/d
Q 3.27881462261132 1.8393e-08 au
  Orbit Determination Parameters
   # obs. used (total)      252  
   data-arc span      8120 days (22.23 yr)  
   first obs. used      1998-03-02  
   last obs. used      2020-05-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56968  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:39:04  

Additional Information
 Earth MOID = .998787 au 
 Jupiter MOID = 2.06073 au 
 T_jup = 3.349 
[ 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 17.16   n/a E2021B55  

227259 (2005 SR91)          Discovered 2005-Sep-24 by Spacewatch at Kitt Peak
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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