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227534 (2005 YK84)
Classification: Main-belt Asteroid          SPK-ID: 2227534
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1066682641456841 7.721e-08  
a 2.895346661963583 2.181e-08 au
q 2.586505059431927 2.2073e-07 au
i 12.38533411620137 4.0339e-06 deg
node 132.4813385802817 2.2612e-05 deg
peri 244.6800049034942 3.0439e-05 deg
M 100.1391299291567 1.8204e-05 deg
tp 2458699.946394311925
(2019-Aug-04.44639431)
9.1223e-05 TDB
period 1799.48935221615
4.93
2.0333e-05
5.567e-08
d
yr
n .2000567547435856 2.2605e-09 deg/d
Q 3.20418826449524 2.4136e-08 au
  Orbit Determination Parameters
   # obs. used (total)      528  
   data-arc span      7859 days (21.52 yr)  
   first obs. used      1999-09-08  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60326  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:40:09  

Additional Information
 Earth MOID = 1.6126 au 
 Jupiter MOID = 2.30816 au 
 T_jup = 3.246 
[ 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 15.5   n/a MPO454634  
diameter diameter 4.834 km 0.208 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.057   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

227534 (2005 YK84)          Discovered 2005-Dec-24 by Spacewatch at Kitt Peak
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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