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215421 (2002 GO155)
Classification: Main-belt Asteroid          SPK-ID: 2215421
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06633929183363492 3.4919e-08  
a 2.238123067622132 1.0771e-08 au
q 2.089647568279557 8.0428e-08 au
i 5.343989555351296 4.2754e-06 deg
node 71.99570683646297 4.9739e-05 deg
peri 48.51638946099283 6.788e-05 deg
M 216.2339555266483 4.7104e-05 deg
tp 2459488.902856219847
(2021-Oct-01.40285622)
0.00016182 TDB
period 1222.994128295263
3.35
8.8287e-06
2.417e-08
d
yr
n .2943595489716747 2.125e-09 deg/d
Q 2.386598566964707 1.1486e-08 au
  Orbit Determination Parameters
   # obs. used (total)      445  
   data-arc span      7321 days (20.04 yr)  
   first obs. used      2000-10-02  
   last obs. used      2020-10-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54024  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 03:41:59  

Additional Information
 Earth MOID = 1.11015 au 
 Jupiter MOID = 2.65266 au 
 T_jup = 3.628 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457796.5 (2017-Feb-12.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06611189832124373 3.476e-08  
q 2.090326894631035 8.0144e-08 au
tp 2458262.804612048905
(2018-May-24.30461205)
0.00015837 TDB
node 72.01281113756662 4.9707e-05 deg
peri 47.7077264865659 6.8068e-05 deg
i 5.345855240706971 4.2781e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      445  
   data-arc span      7321 days (20.04 yr)  
   first obs. used      2000-10-02  
   last obs. used      2020-10-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54024  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 03:41:59  

Additional Information
 Jupiter MOID = 2.65266 au 
 T_jup = 3.628 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.208280456535979E-15 -2.764230103904946E-15 3.55931756414944E-14 1.142091631004418E-14 5.269172956358734E-14 -1.534480376192124E-19
q -2.764230103904946E-15 6.423094920942217E-15 7.076257431273331E-13 -2.60331908149471E-14 1.029470135866E-13 6.583321036577083E-16
tp 3.55931756414944E-14 7.076257431273331E-13 2.508167658895153E-8 -1.861693725247877E-11 7.383281605149961E-9 1.884081799851192E-11
node 1.142091631004418E-14 -2.60331908149471E-14 -1.861693725247877E-11 2.470760967720016E-9 -2.464565519720108E-9 -7.412809300618775E-11
peri 5.269172956358734E-14 1.029470135866E-13 7.383281605149961E-9 -2.464565519720108E-9 4.633193854576878E-9 7.937461939219027E-11
i -1.534480376192124E-19 6.583321036577083E-16 1.884081799851192E-11 -7.412809300618775E-11 7.937461939219027E-11 1.830236509321329E-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 16.9   n/a MPO321052  

215421 (2002 GO155)          Discovered 2002-Apr-13 by NEAT at Palomar
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

Alternate Designations
 2002 GO155 = 2005 BA20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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