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183485 (2003 DY18)
Classification: Main-belt Asteroid          SPK-ID: 2183485
[ 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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02486196984938734 5.7653e-08  
a 2.979910896883862 3.3332e-08 au
q 2.905824442011674 1.6469e-07 au
i 12.62101654300292 5.6913e-06 deg
node 342.5190887702391 2.7945e-05 deg
peri 167.9049573513738 0.00011858 deg
M 127.9112319291922 0.00011503 deg
tp 2458332.910457117649
(2018-Aug-02.41045712)		 0.00059981 TDB
period 1878.898606579656
5.14		 3.1525e-05
8.631e-08		 d
yr
n .1916016110392159 3.2148e-09 deg/d
Q 3.053997351756049 3.4161e-08 au
   Orbit Determination Parameters
   # obs. used (total)      339  
   data-arc span      8167 days (22.36 yr)  
   first obs. used      1998-03-04  
   last obs. used      2020-07-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59081  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 08:34:47  

Additional Information
 Earth MOID = 1.91581 au 
 Jupiter MOID = 1.93224 au 
 T_jup = 3.223 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457643.5 (2016-Sep-12.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0251073459902321 5.8658e-08  
q 2.902388157537014 1.6849e-07 au
tp 2458308.735356649556
(2018-Jul-09.23535665)		 0.00057943 TDB
node 342.6261449087744 2.7965e-05 deg
peri 162.9397129620244 0.00011495 deg
i 12.62031985393585 5.6878e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      339  
   data-arc span      8167 days (22.36 yr)  
   first obs. used      1998-03-04  
   last obs. used      2020-07-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59081  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 08:34:47  

Additional Information
 Jupiter MOID = 1.93224 au 
 T_jup = 3.223 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.440727293057504E-15 -9.713132417201075E-15 -8.954400745498455E-12 -2.425676305838373E-15 -1.741948617657983E-12 -1.145843986936754E-15
q -9.713132417201075E-15 2.838903642170015E-14 2.838450762900445E-11 5.95895690679442E-15 5.455831243753977E-12 5.138486820536323E-15
tp -8.954400745498455E-12 2.838450762900445E-11 3.357377867989561E-7 4.52551768101058E-11 6.465268961410775E-8 8.516352235898394E-12
node -2.425676305838373E-15 5.95895690679442E-15 4.52551768101058E-11 7.820519211647686E-10 -7.539663878282222E-10 -4.966458975807341E-11
peri -1.741948617657983E-12 5.455831243753977E-12 6.465268961410775E-8 -7.539663878282222E-10 1.32139124592775E-8 5.010215419947199E-11
i -1.145843986936754E-15 5.138486820536323E-15 8.516352235898394E-12 -4.966458975807341E-11 5.010215419947199E-11 3.235098340140054E-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 15.3   n/a MPO469977  
diameter diameter 5.432 km 0.236 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.055   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

183485 (2003 DY18)          Discovered 2003-Feb-21 by NEAT at Palomar
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23

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