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227548 (2005 YL138)
Classification: Main-belt Asteroid          SPK-ID: 2227548
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0366153350334821 4.3292e-08  
a 2.87707459453013 2.4823e-08 au
q 2.77172954433509 1.2878e-07 au
i 2.772294047619464 4.4314e-06 deg
node 62.57185999585535 9.8806e-05 deg
peri 265.0024822120155 0.00011646 deg
M 166.1463873619462 6.2582e-05 deg
tp 2458377.853012316902
(2018-Sep-16.35301232)
0.00030943 TDB
period 1782.481823819333
4.88
2.3069e-05
6.316e-08
d
yr
n .2019655938082028 2.6138e-09 deg/d
Q 2.98241964472517 2.5732e-08 au
  Orbit Determination Parameters
   # obs. used (total)      279  
   data-arc span      7836 days (21.45 yr)  
   first obs. used      1999-10-04  
   last obs. used      2021-03-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5529  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:50:43  

Additional Information
 Earth MOID = 1.75963 au 
 Jupiter MOID = 2.13653 au 
 T_jup = 3.293 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457454.5 (2016-Mar-07.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03746954477821852 4.3528e-08  
q 2.769311633699514 1.2948e-07 au
tp 2456576.541700426840
(2013-Oct-11.04170043)
0.00030129 TDB
node 62.63453245386584 9.8959e-05 deg
peri 261.2339578446641 0.0001157 deg
i 2.771575692846866 4.4259e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      279  
   data-arc span      7836 days (21.45 yr)  
   first obs. used      1999-10-04  
   last obs. used      2021-03-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5529  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:50:43  

Additional Information
 Jupiter MOID = 2.13653 au 
 T_jup = 3.293 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.894689578311806E-15 -5.540200995229244E-15 7.790234850799767E-13 -1.817498125638311E-16 1.193808264749678E-13 5.040693592497452E-16
q -5.540200995229244E-15 1.676470328253372E-14 -2.480872749916402E-12 1.912673236083739E-15 -3.382243206863311E-13 -1.201847241466773E-15
tp 7.790234850799767E-13 -2.480872749916402E-12 9.077784927773479E-8 2.436017160125892E-11 1.807972733290389E-8 -7.25925176742936E-13
node -1.817498125638311E-16 1.912673236083739E-15 2.436017160125892E-11 9.792883362085192E-9 -9.77630102729755E-9 1.85909873949965E-11
peri 1.193808264749678E-13 -3.382243206863311E-13 1.807972733290389E-8 -9.77630102729755E-9 1.338665986483401E-8 -1.869404681760755E-11
i 5.040693592497452E-16 -1.201847241466773E-15 -7.25925176742936E-13 1.85909873949965E-11 -1.869404681760755E-11 1.958843087465645E-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 16.63   n/a MPCxxxxx  

227548 (2005 YL138)          Discovered 2005-Dec-26 by Spacewatch at Kitt Peak
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

Alternate Designations
 2005 YL138 = 1999 TJ24 = 2007 HX29 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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