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227176 (2005 QW43)
Classification: Main-belt Asteroid          SPK-ID: 2227176
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 .2043933366152073 3.853e-08  
a 2.29418751809327 1.1577e-08 au
q 1.825270876449225 8.7677e-08 au
i 3.759149268504009 4.4875e-06 deg
node 129.0788731037936 9.1034e-05 deg
peri 145.9019816886596 9.2079e-05 deg
M 189.7453712469621 1.6061e-05 deg
tp 2459800.758367811917
(2022-Aug-09.25836781)
5.8716e-05 TDB
period 1269.234287460946
3.47
9.6074e-06
2.63e-08
d
yr
n .2836355774158654 2.147e-09 deg/d
Q 2.763104159737314 1.3943e-08 au
  Orbit Determination Parameters
   # obs. used (total)      280  
   data-arc span      8176 days (22.38 yr)  
   first obs. used      1998-08-17  
   last obs. used      2021-01-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53453  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:38:43  

Additional Information
 Earth MOID = .808539 au 
 Jupiter MOID = 2.36005 au 
 T_jup = 3.565 
[ 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 MPO437076  

227176 (2005 QW43)          Discovered 2005-Aug-26 by NEAT at Palomar
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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