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227181 (2005 QU50)
Classification: Main-belt Asteroid          SPK-ID: 2227181
[ 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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2065250849643047 3.5355e-08  
a 2.315223475434565 9.054e-09 au
q 1.837071750459089 8.1052e-08 au
i 2.819108052104675 5.0134e-06 deg
node 46.58586235092979 9.4311e-05 deg
peri 248.0873948664091 9.5633e-05 deg
M 161.2225290170635 1.3748e-05 deg
tp 2458624.249876352013
(2019-May-20.74987635)		 4.9143e-05 TDB
period 1286.73111492575
3.52		 7.5479e-06
2.067e-08		 d
yr
n .2797787321873954 1.6412e-09 deg/d
Q 2.793375200410042 1.0924e-08 au
   Orbit Determination Parameters
   # obs. used (total)      311  
   data-arc span      8153 days (22.32 yr)  
   first obs. used      1998-09-19  
   last obs. used      2021-01-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .61164  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:38:45  

Additional Information
 Earth MOID = .82141 au 
 Jupiter MOID = 2.40936 au 
 T_jup = 3.551 
[ 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 17.2   n/a MPO437076  

227181 (2005 QU50)          Discovered 2005-Aug-26 by NEAT at Palomar
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

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Alternate Designations
 2005 QU50 = 1998 SD97 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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