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227178 (2005 QX46)
Classification: Main-belt Asteroid          SPK-ID: 2227178
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1826173216364715 4.149e-08  
a 2.380912414871583 9.5286e-09 au
q 1.946116566616711 9.6754e-08 au
i 2.405479697075479 4.3432e-06 deg
node 87.56999882064717 0.00010583 deg
peri 276.884384471394 0.00010648 deg
M 44.67456297021386 1.1443e-05 deg
tp 2459033.978095907459
(2020-Jul-03.47809591)
4.2359e-05 TDB
period 1341.879617564119
3.67
8.0554e-06
2.205e-08
d
yr
n .2682803995886748 1.6105e-09 deg/d
Q 2.815708263126455 1.1269e-08 au
  Orbit Determination Parameters
   # obs. used (total)      463  
   data-arc span      8088 days (22.14 yr)  
   first obs. used      1998-11-25  
   last obs. used      2021-01-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5049  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:38:45  

Additional Information
 Earth MOID = .944279 au 
 Jupiter MOID = 2.64365 au 
 T_jup = 3.514 
[ 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 16.84   n/a E2021B55  
diameter diameter 2.301 km 0.268 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.084   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

227178 (2005 QX46)          Discovered 2005-Aug-26 by NEAT at Palomar
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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