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227279 (2005 SR161)
Classification: Main-belt Asteroid          SPK-ID: 2227279
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1365848594590378 5.3268e-08  
a 2.376431637389331 1.0873e-08 au
q 2.051847056182498 1.2828e-07 au
i 2.443189680261016 5.9492e-06 deg
node 355.609933938895 0.00010657 deg
peri 144.6672536728954 0.00010885 deg
M 295.0866087537111 2.0631e-05 deg
tp 2459441.778271395380
(2021-Aug-15.27827140)
7.7238e-05 TDB
period 1338.093358468657
3.66
9.1834e-06
2.514e-08
d
yr
n .269039523828137 1.8464e-09 deg/d
Q 2.701016218596164 1.2358e-08 au
  Orbit Determination Parameters
   # obs. used (total)      270  
   data-arc span      9072 days (24.84 yr)  
   first obs. used      1996-03-11  
   last obs. used      2021-01-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53595  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:39:09  

Additional Information
 Earth MOID = 1.06529 au 
 Jupiter MOID = 2.31323 au 
 T_jup = 3.527 
[ 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 17.1   n/a MPO437077  

227279 (2005 SR161)          Discovered 2005-Sep-27 by Spacewatch at Kitt Peak
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ show close-approach data ]
Alternate Designations
 2005 SR161 = 1996 EW4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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