Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
15214 (1981 DY)
Classification: Main-belt Asteroid          SPK-ID: 2015214
[ 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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1449194066132793 4.0214e-08  
a 2.778732322695008 1.377e-08 au
q 2.376040083352908 1.1083e-07 au
i 6.25926604704567 4.5352e-06 deg
node 284.8274693451117 4.0551e-05 deg
peri 326.6964460028489 4.3872e-05 deg
M 105.7216689628523 1.5775e-05 deg
tp 2458503.644609562192
(2019-Jan-20.14460956)		 7.4206e-05 TDB
period 1691.875869084703
4.63		 1.2576e-05
3.443e-08		 d
yr
n .2127815678314263 1.5817e-09 deg/d
Q 3.181424562037108 1.5766e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1255  
   data-arc span      24187 days (66.22 yr)  
   first obs. used      1954-07-03  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51266  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 16:39:52  

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

[ show close-approach data ]
Alternate Designations
 1981 DY = 1954 NC1 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-23 08:18 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin