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452220 (2015 RT221)
Classification: Main-belt Asteroid          SPK-ID: 2452220
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02257872236860668 9.3095e-08  
a 2.986301433053265 6.3702e-08 au
q 2.918874562087383 2.7928e-07 au
i 7.663712093617248 1.1632e-05 deg
node 15.82531285048138 4.4811e-05 deg
peri 318.7457062485936 0.00020552 deg
M 2.3698417994206 0.00020388 deg
tp 2458988.091601131765
(2020-May-18.59160113)
0.0010674 TDB
period 1884.94590383913
5.16
6.0313e-05
1.651e-07
d
yr
n .1909869133468374 6.111e-09 deg/d
Q 3.053728304019147 6.514e-08 au
  Orbit Determination Parameters
   # obs. used (total)      99  
   data-arc span      4552 days (12.46 yr)  
   first obs. used      2005-10-27  
   last obs. used      2018-04-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57339  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-15 06:48:52  

Additional Information
 Earth MOID = 1.91523 au 
 Jupiter MOID = 2.02175 au 
 T_jup = 3.244 
[ 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 16.3   n/a MPO440874  

452220 (2015 RT221)          Discovered 2005-Oct-27 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-11-30

Alternate Designations
 2015 RT221 = 2005 UK385 = 2013 FO27 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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