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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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02486196463128015 5.8739e-08  
a 2.979910899693923 3.4232e-08 au
q 2.905824460301366 1.6972e-07 au
i 12.62101753099359 5.9275e-06 deg
node 342.5190912519654 2.8284e-05 deg
peri 167.9049426999606 0.00012359 deg
M 127.9112431293665 0.00011946 deg
tp 2458332.910397717809
(2018-Aug-02.41039772)		 0.00062364 TDB
period 1878.898609237363
5.14		 3.2376e-05
8.864e-08		 d
yr
n .1916016107681949 3.3015e-09 deg/d
Q 3.05399733908648 3.5083e-08 au
   Orbit Determination Parameters
   # obs. used (total)      331  
   data-arc span      8124 days (22.24 yr)  
   first obs. used      1998-03-04  
   last obs. used      2020-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59559  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 03:42:44  

Additional Information
 Earth MOID = 1.91581 au 
 Jupiter MOID = 1.93224 au 
 T_jup = 3.223 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457532.5 (2016-May-24.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02513737055832623 5.9505e-08  
q 2.902341829638066 1.7258e-07 au
tp 2458308.050487043412
(2018-Jul-08.55048704)		 0.00060525 TDB
node 342.627056816845 2.8301e-05 deg
peri 162.8115895960852 0.00012038 deg
i 12.62075242925523 5.9248e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      331  
   data-arc span      8124 days (22.24 yr)  
   first obs. used      1998-03-04  
   last obs. used      2020-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59559  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 03:42:44  

Additional Information
 Jupiter MOID = 1.93224 au 
 T_jup = 3.223 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.540818696678853E-15 -1.008675310337624E-14 -7.20921675687443E-12 -8.425423875918616E-15 -1.379859624503079E-12 -3.877491184248068E-15
q -1.008675310337624E-14 2.97850270896284E-14 2.185004105898483E-11 2.266091073520412E-14 4.105432299626529E-12 1.31637872060099E-14
tp -7.20921675687443E-12 2.185004105898483E-11 3.663289797226318E-7 1.033021832534246E-10 7.085527595155012E-8 2.35332728504978E-11
node -8.425423875918616E-15 2.266091073520412E-14 1.033021832534246E-10 8.009651451000031E-10 -7.610396303758199E-10 -4.252217020552401E-11
peri -1.379859624503079E-12 4.105432299626529E-12 7.085527595155012E-8 -7.610396303758199E-10 1.449026418756267E-8 4.601188669338157E-11
i -3.877491184248068E-15 1.31637872060099E-14 2.35332728504978E-11 -4.252217020552401E-11 4.601188669338157E-11 3.510313314395683E-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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