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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06633926597211864 4.0612e-08  
a 2.238123062117181 1.1628e-08 au
q 2.089647621021057 9.0881e-08 au
i 5.343998690171267 5.9554e-06 deg
node 71.99571287538934 4.9935e-05 deg
peri 48.51641069433182 7.2389e-05 deg
M 216.2339326121274 5.1561e-05 deg
tp 2459488.902932263258
(2021-Oct-01.40293226)
0.00017624 TDB
period 1222.994123783096
3.35
9.5314e-06
2.61e-08
d
yr
n .2943595500576973 2.2941e-09 deg/d
Q 2.386598503213305 1.24e-08 au
  Orbit Determination Parameters
   # obs. used (total)      367  
   data-arc span      7241 days (19.82 yr)  
   first obs. used      2000-10-02  
   last obs. used      2020-07-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5629  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 15:11:44  

Additional Information
 Earth MOID = 1.11015 au 
 Jupiter MOID = 2.65266 au 
 T_jup = 3.628 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457200.5 (2015-Jun-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06637100372023139 4.0647e-08  
q 2.089942762775382 9.114e-08 au
tp 2457040.497133373103
(2015-Jan-17.99713337)
0.00017151 TDB
node 72.0238114736249 4.9902e-05 deg
peri 47.92390727041435 7.2394e-05 deg
i 5.345755881005019 5.9576e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      367  
   data-arc span      7241 days (19.82 yr)  
   first obs. used      2000-10-02  
   last obs. used      2020-07-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5629  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 15:11:44  

Additional Information
 Jupiter MOID = 2.65266 au 
 T_jup = 3.628 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.652179378602884E-15 -3.678376536034391E-15 -1.502084727525062E-12 1.39618850256533E-14 -4.583546717162015E-13 -2.060083513528947E-15
q -3.678376536034391E-15 8.306426750417805E-15 3.752270664783283E-12 -3.155439078687936E-14 1.148199271167593E-12 4.724042812682965E-15
tp -1.502084727525062E-12 3.752270664783283E-12 2.941624741760378E-8 -3.624167592204699E-11 9.011201718806489E-9 5.021204141431795E-12
node 1.39618850256533E-14 -3.155439078687936E-14 -3.624167592204699E-11 2.490245318792694E-9 -2.489611965609384E-9 -6.746879491295847E-11
peri -4.583546717162015E-13 1.148199271167593E-12 9.011201718806489E-9 -2.489611965609384E-9 5.240835514480439E-9 6.873866766553123E-11
i -2.060083513528947E-15 4.724042812682965E-15 5.021204141431795E-12 -6.746879491295847E-11 6.873866766553123E-11 3.549276688189665E-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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