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227300 (2005 SP261)
Classification: Main-belt Asteroid          SPK-ID: 2227300
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1553383026554834 4.375e-08  
a 2.379558121918303 1.1334e-08 au
q 2.009921602189444 1.0595e-07 au
i 2.318928861480409 6.5211e-06 deg
node 179.4492172885109 0.00012003 deg
peri 89.74679046013176 0.00012245 deg
M 123.206039173191 2.2969e-05 deg
tp 2458741.648244176892
(2019-Sep-15.14824418)
8.4699e-05 TDB
period 1340.734863362629
3.67
9.5789e-06
2.623e-08
d
yr
n .2685094643523346 1.9184e-09 deg/d
Q 2.749194641647162 1.3094e-08 au
  Orbit Determination Parameters
   # obs. used (total)      326  
   data-arc span      7128 days (19.52 yr)  
   first obs. used      2001-06-12  
   last obs. used      2020-12-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56139  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:39:14  

Additional Information
 Earth MOID = .993706 au 
 Jupiter MOID = 2.33748 au 
 T_jup = 3.522 
[ 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 17.2   n/a MPO245453  

227300 (2005 SP261)          Discovered 2005-Sep-22 by NEAT at Palomar
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

Alternate Designations
 2005 SP261 = 2004 FG24 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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