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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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06633925808513319 4.3334e-08  
a 2.238123060467533 1.203e-08 au
q 2.089647637132889 9.6009e-08 au
i 5.344000692865631 6.5016e-06 deg
node 71.9957106511695 5.0027e-05 deg
peri 48.51642263531808 7.5094e-05 deg
M 216.233924269085 5.4328e-05 deg
tp 2459488.902960066311
(2021-Oct-01.40296007)
0.00018527 TDB
period 1222.994122430952
3.35
9.8603e-06
2.7e-08
d
yr
n .2943595503831417 2.3732e-09 deg/d
Q 2.386598483802176 1.2828e-08 au
  Orbit Determination Parameters
   # obs. used (total)      359  
   data-arc span      6824 days (18.68 yr)  
   first obs. used      2000-10-02  
   last obs. used      2019-06-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56598  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 03:23:10  

Additional Information
 Earth MOID = 1.11015 au 
 Jupiter MOID = 2.65266 au 
 T_jup = 3.628 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457015.5 (2014-Dec-24.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06629499266351173 4.3418e-08  
q 2.090134856473885 9.6323e-08 au
tp 2457041.126632107918
(2015-Jan-18.62663211)
0.00018262 TDB
node 72.04211423815305 4.9981e-05 deg
peri 48.11858561760812 7.5133e-05 deg
i 5.346366746066544 6.5045e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      359  
   data-arc span      6824 days (18.68 yr)  
   first obs. used      2000-10-02  
   last obs. used      2019-06-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56598  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 03:23:10  

Additional Information
 Jupiter MOID = 2.65266 au 
 T_jup = 3.628 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.885122525034066E-15 -4.154476339926745E-15 -2.44133507875569E-12 1.545832469680227E-14 -7.585042448716061E-13 -2.197519855768034E-15
q -4.154476339926745E-15 9.278038046459738E-15 5.665545404475773E-12 -3.424806189722805E-14 1.759823785377145E-12 5.058406759332641E-15
tp -2.44133507875569E-12 5.665545404475773E-12 3.334980331589544E-8 -3.508578308676787E-11 1.025960226676544E-8 -3.175603133937767E-13
node 1.545832469680227E-14 -3.424806189722805E-14 -3.508578308676787E-11 2.498091389920433E-9 -2.497076585707764E-9 -7.529833485459189E-11
peri -7.585042448716061E-13 1.759823785377145E-12 1.025960226676544E-8 -2.497076585707764E-9 5.644905445354903E-9 7.486790160908791E-11
i -2.197519855768034E-15 5.058406759332641E-15 -3.175603133937767E-13 -7.529833485459189E-11 7.486790160908791E-11 4.230878025441034E-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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