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227457 (2005 WQ101)
Classification: Main-belt Asteroid          SPK-ID: 2227457
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02922011869473912 6.2696e-08  
a 2.767105165211924 2.8076e-08 au
q 2.686250023843606 1.7242e-07 au
i .6426724119177589 7.1078e-06 deg
node 66.77697058724242 0.00063847 deg
peri 37.84331388403035 0.0006543 deg
M 78.55199043512087 0.00013961 deg
tp 2458833.647386158326
(2019-Dec-16.14738616)
0.00065211 TDB
period 1681.267912518165
4.60
2.5588e-05
7.006e-08
d
yr
n .2141241127125303 3.2589e-09 deg/d
Q 2.847960306580242 2.8896e-08 au
  Orbit Determination Parameters
   # obs. used (total)      164  
   data-arc span      6970 days (19.08 yr)  
   first obs. used      2002-02-13  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .6912  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:39:50  

Additional Information
 Earth MOID = 1.70299 au 
 Jupiter MOID = 2.17253 au 
 T_jup = 3.338 
[ 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 17.11   n/a E2021B55  

227457 (2005 WQ101)          Discovered 2005-Nov-29 by Spacewatch at Kitt Peak
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ show close-approach data ]
Alternate Designations
 2005 WQ101 = 2002 CP303 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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