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150238 (1998 YG9)
Classification: Main-belt Asteroid          SPK-ID: 2150238
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1616294027065315 4.2623e-08  
a 2.423126083046412 1.2236e-08 au
q 2.031477661561003 1.0805e-07 au
i 2.357134739764965 4.29e-06 deg
node 71.55041481038137 0.00010844 deg
peri 353.8165337804382 0.00010946 deg
M 309.1405793341273 1.6513e-05 deg
tp 2459395.139667339365
(2021-Jun-29.63966734)
6.408e-05 TDB
period 1377.724703207036
3.77
1.0436e-05
2.857e-08
d
yr
n .2613003883591549 1.9792e-09 deg/d
Q 2.814774504531821 1.4214e-08 au
  Orbit Determination Parameters
   # obs. used (total)      433  
   data-arc span      7976 days (21.84 yr)  
   first obs. used      1998-12-17  
   last obs. used      2020-10-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5617  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 19:17:41  

Additional Information
 Earth MOID = 1.04449 au 
 Jupiter MOID = 2.4813 au 
 T_jup = 3.493 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457283.5 (2015-Sep-18.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1634598511423294 4.289e-08  
q 2.026486379016776 1.0891e-07 au
tp 2456637.365932215458
(2013-Dec-10.86593222)
5.2526e-05 TDB
node 71.58760003531154 0.00010823 deg
peri 353.298519997333 0.00010921 deg
i 2.360355224093216 4.2957e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      433  
   data-arc span      7976 days (21.84 yr)  
   first obs. used      1998-12-17  
   last obs. used      2020-10-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5617  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 19:17:41  

Additional Information
 Jupiter MOID = 2.4813 au 
 T_jup = 3.493 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.839510345531125E-15 -4.654119049871467E-15 -4.921508053194547E-13 -7.119563445526659E-15 -1.20132186432637E-13 -2.739382371459364E-16
q -4.654119049871467E-15 1.186030959160102E-14 1.381185670793148E-12 1.638430661107121E-14 3.503654641773323E-13 9.288884592542607E-16
tp -4.921508053194547E-13 1.381185670793148E-12 2.758982020834839E-9 -1.672824189091331E-11 7.870453694508842E-10 1.242483142977074E-12
node -7.119563445526659E-15 1.638430661107121E-14 -1.672824189091331E-11 1.171271313750823E-8 -1.170708239373069E-8 -5.158287539577866E-11
peri -1.20132186432637E-13 3.503654641773323E-13 7.870453694508842E-10 -1.170708239373069E-8 1.192706173895037E-8 5.190140023903981E-11
i -2.739382371459364E-16 9.288884592542607E-16 1.242483142977074E-12 -5.158287539577866E-11 5.190140023903981E-11 1.845317558001599E-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 16.72   n/a MPCxxxxx  

150238 (1998 YG9)          Discovered 1998-Dec-23 by Tesi, L., Boattini, A. at San Marcello
Reference: 20070303/Numbers.arcLast Updated: 2007-03-07

Alternate Designations
 1998 YG9 = 2003 AH54 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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