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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456768.5 (2014-Apr-21.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2320872012408831 6.71e-08  
q 1.896671938636642 1.6772e-07 au
tp 2456399.594796674546
(2013-Apr-17.09479667)
0.00013838 TDB
node 94.24033173948568 3.6028e-05 deg
peri 258.560982831008 5.1165e-05 deg
i 13.36724186670525 9.8833e-06 deg
  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
 Jupiter MOID = 2.50949 au 
 T_jup = 3.411 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.502457555808654E-15 -1.115680946475936E-14 2.225777363681161E-12 -3.578765252726302E-14 5.998505368613615E-13 -9.477904385353969E-15
q -1.115680946475936E-14 2.812846353131701E-14 -3.192858545197101E-12 5.220586255736862E-14 -8.791710259792386E-13 2.702877511571471E-14
tp 2.225777363681161E-12 -3.192858545197101E-12 1.914960419114224E-8 -2.643390661964457E-10 5.100747419950549E-9 3.69295171836765E-12
node -3.578765252726302E-14 5.220586255736862E-14 -2.643390661964457E-10 1.29802560227263E-9 -1.328070508635109E-9 -1.339478038786128E-10
peri 5.998505368613615E-13 -8.791710259792386E-13 5.100747419950549E-9 -1.328070508635109E-9 2.617851508244734E-9 1.310570040368704E-10
i -9.477904385353969E-15 2.702877511571471E-14 3.69295171836765E-12 -1.339478038786128E-10 1.310570040368704E-10 9.768046531448816E-11

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

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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