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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02657416356138857 5.6676e-08  
a 2.976308872887352 3.3725e-08 au
q 2.897215954090032 1.6194e-07 au
i 12.64549580234687 5.6543e-06 deg
node 342.4421313782963 2.7257e-05 deg
peri 170.569723553774 0.00011063 deg
M 201.0833027262011 0.00010681 deg
tp 2460224.408717115503
(2023-Oct-06.90871712)
0.0005572 TDB
period 1875.492904613246
5.13
3.1877e-05
8.727e-08
d
yr
n .1919495398326965 3.2625e-09 deg/d
Q 3.055401791684673 3.4621e-08 au
  Orbit Determination Parameters
   # obs. used (total)      342  
   data-arc span      8167 days (22.36 yr)  
   first obs. used      1998-03-04  
   last obs. used      2020-07-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5916  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:39:10  

Additional Information
 Earth MOID = 1.90744 au 
 Jupiter MOID = 1.92869 au 
 T_jup = 3.224 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457666.5 (2016-Oct-05.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02510022062532541 5.7819e-08  
q 2.902402691688822 1.6558e-07 au
tp 2458308.833927281593
(2018-Jul-09.33392728)
0.0005732 TDB
node 342.6258202941538 2.736e-05 deg
peri 162.9581629224057 0.00011376 deg
i 12.62021561567318 5.6429e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      342  
   data-arc span      8167 days (22.36 yr)  
   first obs. used      1998-03-04  
   last obs. used      2020-07-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5916  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:39:10  

Additional Information
 Jupiter MOID = 1.92869 au 
 T_jup = 3.224 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.342984511047681E-15 -9.40504838881408E-15 -8.1109683880005E-12 -2.711857666104023E-15 -1.585205867290609E-12 -1.051694048325137E-15
q -9.40504838881408E-15 2.741812841676928E-14 2.57223313245508E-11 6.665708992849563E-15 4.9612069620562E-12 4.859724898227731E-15
tp -8.1109683880005E-12 2.57223313245508E-11 3.285572694646871E-7 2.769780290226625E-11 6.33395476653873E-8 1.020009801053012E-11
node -2.711857666104023E-15 6.665708992849563E-15 2.769780290226625E-11 7.485934226124258E-10 -7.246535230801502E-10 -4.553984771320121E-11
peri -1.585205867290609E-12 4.9612069620562E-12 6.33395476653873E-8 -7.246535230801502E-10 1.294213989395834E-8 4.639982608090001E-11
i -1.051694048325137E-15 4.859724898227731E-15 1.020009801053012E-11 -4.553984771320121E-11 4.639982608090001E-11 3.184242452798804E-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 15.42   n/a E2021B55  
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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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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