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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1447334851917278 3.9964e-08  
a 2.779145570253651 1.2163e-08 au
q 2.376910146015688 1.0939e-07 au
i 6.259198529437954 3.5478e-06 deg
node 284.8296352263739 3.8255e-05 deg
peri 326.7191913308319 4.0325e-05 deg
M 148.2596797287756 1.3875e-05 deg
tp 2458503.575187395646
(2019-Jan-20.07518740)		 6.3916e-05 TDB
period 1692.253301751008
4.63		 1.1109e-05
3.041e-08		 d
yr
n .2127341099748488 1.3965e-09 deg/d
Q 3.181380994491613 1.3923e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1473  
   data-arc span      24297 days (66.52 yr)  
   first obs. used      1954-07-03  
   last obs. used      2021-01-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49652  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:52:03  

Additional Information
 Earth MOID = 1.36375 au 
 Jupiter MOID = 1.89283 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 14.18   n/a E2021B10  
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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