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308590 (2005 UN522)
Classification: Main-belt Asteroid          SPK-ID: 2308590
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05160394598380069 5.3284e-08  
a 3.113666514807229 3.6664e-08 au
q 2.952989036165548 1.782e-07 au
i 18.7082468510587 7.7563e-06 deg
node 189.8064507922317 1.727e-05 deg
peri 86.50576781514027 7.8274e-05 deg
M 327.4235393308911 7.4299e-05 deg
tp 2459182.096706676177
(2020-Nov-28.59670668)
0.00041351 TDB
period 2006.811454057574
5.49
3.5446e-05
9.705e-08
d
yr
n .179389049864209 3.1685e-09 deg/d
Q 3.27434399344891 3.8556e-08 au
  Orbit Determination Parameters
   # obs. used (total)      237  
   data-arc span      5371 days (14.70 yr)  
   first obs. used      2005-10-01  
   last obs. used      2020-06-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58884  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 05:24:52  

Additional Information
 Earth MOID = 2.0141 au 
 Jupiter MOID = 1.8168 au 
 T_jup = 3.135 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457748.5 (2016-Dec-26.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05047826970221563 5.3367e-08  
q 2.958123880244707 1.7844e-07 au
tp 2457173.690583723073
(2015-May-31.19058372)
0.00043187 TDB
node 189.8235197107003 1.7264e-05 deg
peri 86.30763573125103 7.9895e-05 deg
i 18.70829970026258 7.7568e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      237  
   data-arc span      5371 days (14.70 yr)  
   first obs. used      2005-10-01  
   last obs. used      2020-06-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58884  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 05:24:52  

Additional Information
 Jupiter MOID = 1.8168 au 
 T_jup = 3.135 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.84802641298552E-15 -9.349797762451411E-15 -8.599504202948381E-12 9.116345693678231E-15 -1.544783770059469E-12 -6.940649422779089E-15
q -9.349797762451411E-15 3.184063339336069E-14 2.250797784751433E-11 -2.987361984004496E-14 4.087915014429218E-12 2.596502546521721E-14
tp -8.599504202948381E-12 2.250797784751433E-11 1.865156742958144E-7 -3.485119461872283E-11 3.372380304920088E-8 4.890811268064558E-11
node 9.116345693678231E-15 -2.987361984004496E-14 -3.485119461872283E-11 2.980544963705087E-10 -2.882217180902524E-10 6.337521979265668E-11
peri -1.544783770059469E-12 4.087915014429218E-12 3.372380304920088E-8 -2.882217180902524E-10 6.383139698591452E-9 -5.083194682211032E-11
i -6.940649422779089E-15 2.596502546521721E-14 4.890811268064558E-11 6.337521979265668E-11 -5.083194682211032E-11 6.016773294044717E-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 15.8   n/a MPO433986  
diameter diameter 3.227 km 0.884 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.068   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

308590 (2005 UN522)          Discovered 2005-Oct-27 by Becker, A. C. at Apache Point
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12

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