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18589 (1997 YL10)
Classification: Main-belt Asteroid          SPK-ID: 2018589
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1291597723610154 3.8172e-08  
a 2.246724048181609 5.4667e-09 au
q 1.956537681560454 8.6583e-08 au
i 3.190634020508124 3.933e-06 deg
node 27.7431555761963 5.5284e-05 deg
peri 357.2125918194367 5.7046e-05 deg
M 308.6902244804956 1.284e-05 deg
tp 2459175.815631955611
(2020-Nov-22.31563196)
4.3817e-05 TDB
period 1230.050743060227
3.37
4.4894e-06
1.229e-08
d
yr
n .2926708528335675 1.0682e-09 deg/d
Q 2.536910414802765 6.1728e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1848  
   data-arc span      9952 days (27.25 yr)  
   first obs. used      1993-08-15  
   last obs. used      2020-11-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48923  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 03:08:30  

Additional Information
 Earth MOID = .960298 au 
 Jupiter MOID = 2.90415 au 
 T_jup = 3.617 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457251.5 (2015-Aug-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1299156504836605 3.8104e-08  
q 1.95470127516679 8.6501e-08 au
tp 2456716.662397960862
(2014-Feb-28.16239796)
4.4987e-05 TDB
node 27.80359640505518 5.5223e-05 deg
peri 357.3426424157252 5.6961e-05 deg
i 3.193052456150406 3.9347e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1848  
   data-arc span      9952 days (27.25 yr)  
   first obs. used      1993-08-15  
   last obs. used      2020-11-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48923  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 03:08:30  

Additional Information
 Jupiter MOID = 2.90415 au 
 T_jup = 3.617 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.451939954148814E-15 -3.291181560171185E-15 -6.718713630154684E-13 -1.302061889741831E-14 -2.092536470321371E-13 -9.091471245895617E-16
q -3.291181560171185E-15 7.482436405764999E-15 1.447446276626874E-12 2.8839350836085E-14 4.546905969203975E-13 2.090162289352518E-15
tp -6.718713630154684E-13 1.447446276626874E-12 2.023874043141053E-9 1.34226275542211E-11 6.349828620052487E-10 1.60992571109655E-13
node -1.302061889741831E-14 2.8839350836085E-14 1.34226275542211E-11 3.049546698153756E-9 -3.040094879249446E-9 -8.492646074290614E-11
peri -2.092536470321371E-13 4.546905969203975E-13 6.349828620052487E-10 -3.040094879249446E-9 3.244522232450984E-9 8.486653819130618E-11
i -9.091471245895617E-16 2.090162289352518E-15 1.60992571109655E-13 -8.492646074290614E-11 8.486653819130618E-11 1.548158280760274E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.9   n/a MPO474012  
diameter diameter 2.235 km 0.640 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.322   0.167 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18589 (1997 YL10)          Discovered 1997-Dec-28 by Kobayashi, T. at Oizumi
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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