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15214 (1981 DY)
Classification: Main-belt Asteroid          SPK-ID: 2015214
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1449194065137477 4.0374e-08  
a 2.778732322905088 1.4244e-08 au
q 2.376040083809115 1.1159e-07 au
i 6.259265883573558 4.7497e-06 deg
node 284.8274679836087 4.0728e-05 deg
peri 326.6964470370262 4.4467e-05 deg
M 105.7216691767661 1.6345e-05 deg
tp 2458503.644608500525
(2019-Jan-20.14460850)		 7.7143e-05 TDB
period 1691.875869276568
4.63		 1.3009e-05
3.562e-08		 d
yr
n .212781567807296 1.6361e-09 deg/d
Q 3.181424562001061 1.6308e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1184  
   data-arc span      23879 days (65.38 yr)  
   first obs. used      1954-07-03  
   last obs. used      2019-11-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52466  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 21:13:35  

Additional Information
 Earth MOID = 1.36449 au 
 Jupiter MOID = 1.89378 au 
 T_jup = 3.310 
[ 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 14.1   n/a MPO302159  
diameter diameter 8.584 km 0.082 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.078   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15214 (1981 DY)          Discovered 1981-Feb-28 by Bus, S. J. at Siding Spring
Reference: 20000621/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1981 DY = 1954 NC1 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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