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227410 (2005 UN457)
Classification: Main-belt Asteroid          SPK-ID: 2227410
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 .2336337187923444 6.7179e-08  
a 2.467987100569826 2.9963e-08 au
q 1.891382096332162 1.683e-07 au
i 13.35720384270089 9.8735e-06 deg
node 94.16133065586791 3.6105e-05 deg
peri 258.3596364157545 5.0883e-05 deg
M 352.1597048040596 4.4885e-05 deg
tp 2459231.342009665449
(2021-Jan-16.84200967)
0.00017706 TDB
period 1416.161407457048
3.88
2.5789e-05
7.061e-08
d
yr
n .2542083113579825 4.6293e-09 deg/d
Q 3.04459210480749 3.6963e-08 au
  Orbit Determination Parameters
   # obs. used (total)      212  
   data-arc span      6494 days (17.78 yr)  
   first obs. used      2001-08-19  
   last obs. used      2019-05-31  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55922  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:39:39  

Additional Information
 Earth MOID = .936054 au 
 Jupiter MOID = 2.50949 au 
 T_jup = 3.411 
[ 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 16.0   n/a MPO475861  
diameter diameter 2.221 km 0.360 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.143   0.052 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

227410 (2005 UN457)          Discovered 2005-Oct-31 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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