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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06651827554270726 3.4143e-08  
a 2.237804298097254 1.0674e-08 au
q 2.088949415185766 7.8854e-08 au
i 5.344014351934038 4.1538e-06 deg
node 71.99258952714055 4.8928e-05 deg
peri 48.58408550570576 6.6992e-05 deg
M 275.0615430524417 4.6978e-05 deg
tp 2459488.991783517313
(2021-Oct-01.49178352)
0.00016066 TDB
period 1222.732856217942
3.35
8.7483e-06
2.395e-08
d
yr
n .2944224473639506 2.1065e-09 deg/d
Q 2.386659181008742 1.1384e-08 au
  Orbit Determination Parameters
   # obs. used (total)      467  
   data-arc span      7369 days (20.18 yr)  
   first obs. used      2000-10-02  
   last obs. used      2020-12-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53635  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:50:40  

Additional Information
 Earth MOID = 1.10936 au 
 Jupiter MOID = 2.65177 au 
 T_jup = 3.628 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457944.5 (2017-Jul-10.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06602079555794899 3.396e-08  
q 2.090690253587871 7.8546e-08 au
tp 2458262.755899829985
(2018-May-24.25589983)
0.00015784 TDB
node 72.01009458042296 4.8889e-05 deg
peri 47.67573870975697 6.7322e-05 deg
i 5.345910131839323 4.1566e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      467  
   data-arc span      7369 days (20.18 yr)  
   first obs. used      2000-10-02  
   last obs. used      2020-12-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53635  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:50:40  

Additional Information
 Jupiter MOID = 2.65177 au 
 T_jup = 3.628 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.153310183920847E-15 -2.646347970847009E-15 9.225064717549274E-14 1.080564925757285E-14 7.22548670892352E-14 6.067351000128967E-17
q -2.646347970847009E-15 6.169413188743635E-15 5.971383162301923E-13 -2.484281527580257E-14 6.500425648588664E-14 5.366560652405265E-16
tp 9.225064717549274E-14 5.971383162301923E-13 2.491308707624904E-8 -2.209326806469463E-11 7.323642898019634E-9 1.825913150469825E-11
node 1.080564925757285E-14 -2.484281527580257E-14 -2.209326806469463E-11 2.390159005218659E-9 -2.385405988737021E-9 -8.124541490872076E-11
peri 7.22548670892352E-14 6.500425648588664E-14 7.323642898019634E-9 -2.385405988737021E-9 4.532224563475379E-9 8.626611798010705E-11
i 6.067351000128967E-17 5.366560652405265E-16 1.825913150469825E-11 -8.124541490872076E-11 8.626611798010705E-11 1.727759642384252E-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 17.03   n/a MPCxxxxx  

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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