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249363 (2008 YG142)
Classification: Main-belt Asteroid          SPK-ID: 2249363
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04935962550820998 6.4095e-08  
a 2.757841448407815 2.7482e-08 au
q 2.621715427303386 1.8109e-07 au
i 4.381862309694458 6.4997e-06 deg
node 326.7566629298673 9.4174e-05 deg
peri 277.2972917795583 0.00011955 deg
M 326.6154573373519 7.2289e-05 deg
tp 2458755.629823708889
(2019-Sep-29.12982371)
0.00033563 TDB
period 1672.832157670489
4.58
2.5004e-05
6.846e-08
d
yr
n .2152038973840149 3.2167e-09 deg/d
Q 2.893967469512245 2.8838e-08 au
  Orbit Determination Parameters
   # obs. used (total)      168  
   data-arc span      5126 days (14.03 yr)  
   first obs. used      2005-05-14  
   last obs. used      2019-05-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59961  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:18:41  

Additional Information
 Earth MOID = 1.61278 au 
 Jupiter MOID = 2.1242 au 
 T_jup = 3.337 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457437.5 (2016-Feb-19.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04861539883155751 6.4238e-08  
q 2.624468798764537 1.8134e-07 au
tp 2457080.721854785749
(2015-Feb-27.22185479)
0.00034418 TDB
node 326.7831305472622 9.4149e-05 deg
peri 276.9003932212663 0.00012014 deg
i 4.382004290505416 6.501e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      168  
   data-arc span      5126 days (14.03 yr)  
   first obs. used      2005-05-14  
   last obs. used      2019-05-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59961  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:18:41  

Additional Information
 Jupiter MOID = 2.1242 au 
 T_jup = 3.337 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.126468219749431E-15 -1.152717506741137E-14 -8.060416738400041E-12 7.260230410369241E-15 -1.63150532138048E-12 -5.550106394391172E-15
q -1.152717506741137E-14 3.288577096353557E-14 2.052571258782769E-11 -1.434316774277703E-14 4.141527965989318E-12 1.661277413734989E-14
tp -8.060416738400041E-12 2.052571258782769E-11 1.184596336629518E-7 3.702667164712423E-11 2.575388056833483E-8 2.429273060440191E-11
node 7.260230410369241E-15 -1.434316774277703E-14 3.702667164712423E-11 8.864016174441973E-9 -8.828519144481515E-9 2.892891864676238E-10
peri -1.63150532138048E-12 4.141527965989318E-12 2.575388056833483E-8 -8.828519144481515E-9 1.44325539329193E-8 -2.832212805055117E-10
i -5.550106394391172E-15 1.661277413734989E-14 2.429273060440191E-11 2.892891864676238E-10 -2.832212805055117E-10 4.22629678172097E-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 16.4   n/a MPO433634  
diameter diameter 2.833 km 0.426 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.066   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249363 (2008 YG142)          Discovered 2008-Dec-30 by Spacewatch at Kitt Peak
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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