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249361 (2008 YM89)
Classification: Main-belt Asteroid          SPK-ID: 2249361
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1384962718508242 5.6738e-08  
a 2.652241335576991 3.283e-08 au
q 2.284915798550927 1.602e-07 au
i 10.74293585737204 9.5783e-06 deg
node 290.0901148123828 4.0568e-05 deg
peri 318.697175050078 5.9237e-05 deg
M 98.66983741278978 4.4171e-05 deg
tp 2458568.085849390463
(2019-Mar-25.58584939)
0.00019302 TDB
period 1577.676606156595
4.32
2.9293e-05
8.02e-08
d
yr
n .2281836458721423 4.2368e-09 deg/d
Q 3.019566872603055 3.7377e-08 au
  Orbit Determination Parameters
   # obs. used (total)      212  
   data-arc span      5713 days (15.64 yr)  
   first obs. used      2002-07-22  
   last obs. used      2018-03-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56286  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 09:55:24  

Additional Information
 Earth MOID = 1.28219 au 
 Jupiter MOID = 2.10461 au 
 T_jup = 3.351 
[ 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 16.2   n/a MPO437158  
diameter diameter 3.163 km 0.135 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.044   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249361 (2008 YM89)          Discovered 2008-Dec-29 by Spacewatch at Kitt Peak
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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