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249359 (2008 YK38)
Classification: Main-belt Asteroid          SPK-ID: 2249359
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1272917566520147 4.6431e-08  
a 2.750799306685658 3.101e-08 au
q 2.400645230740496 1.258e-07 au
i 8.728702706303366 4.9105e-06 deg
node 108.0629381060511 4.3274e-05 deg
peri 336.7040246792599 5.3921e-05 deg
M 197.7196210244953 3.8146e-05 deg
tp 2459751.690866202967
(2022-Jun-21.19086620)
0.00018619 TDB
period 1666.428890173394
4.56
2.8178e-05
7.715e-08
d
yr
n .2160308202305239 3.6529e-09 deg/d
Q 3.100953382630819 3.4957e-08 au
  Orbit Determination Parameters
   # obs. used (total)      256  
   data-arc span      8937 days (24.47 yr)  
   first obs. used      1994-12-10  
   last obs. used      2019-05-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64147  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 10:22:18  

Additional Information
 Earth MOID = 1.41971 au 
 Jupiter MOID = 2.09969 au 
 T_jup = 3.317 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457177.5 (2015-Jun-04.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1297540153882034 4.6673e-08  
q 2.389866207570787 1.2696e-07 au
tp 2456422.366489060106
(2013-May-09.86648906)
0.00014381 TDB
node 108.095945156969 4.3341e-05 deg
peri 336.2948591891375 5.3562e-05 deg
i 8.726846467049398 4.9104e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      256  
   data-arc span      8937 days (24.47 yr)  
   first obs. used      1994-12-10  
   last obs. used      2019-05-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64147  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 10:22:18  

Additional Information
 Jupiter MOID = 2.09969 au 
 T_jup = 3.317 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.178379679353938E-15 -5.794864915675875E-15 -7.158731913929111E-13 1.185869052869668E-16 -1.591370317423321E-13 3.931230267329739E-16
q -5.794864915675875E-15 1.611888519898268E-14 4.251477758270368E-12 1.959405219401302E-16 9.742327165996302E-13 -6.805347656622131E-16
tp -7.158731913929111E-13 4.251477758270368E-12 2.068241904265719E-8 -6.749516209155734E-12 4.583125392514308E-9 -1.803474900517857E-12
node 1.185869052869668E-16 1.959405219401302E-16 -6.749516209155734E-12 1.878482629020162E-9 -1.8581537361764E-9 -1.560650379167058E-11
peri -1.591370317423321E-13 9.742327165996302E-13 4.583125392514308E-9 -1.8581537361764E-9 2.868856435965058E-9 1.505208690212641E-11
i 3.931230267329739E-16 -6.805347656622131E-16 -1.803474900517857E-12 -1.560650379167058E-11 1.505208690212641E-11 2.411184777417868E-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 16.2   n/a MPO433634  
diameter diameter 3.010 km 0.438 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.058   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249359 (2008 YK38)          Discovered 2008-Dec-29 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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