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172124 (2002 GA171)
Classification: Main-belt Asteroid          SPK-ID: 2172124
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05479210999086087 5.4276e-08  
a 2.359305136168288 1.4659e-08 au
q 2.230033829645353 1.3393e-07 au
i 4.784671579969561 5.095e-06 deg
node 222.5461312654437 6.0708e-05 deg
peri 357.6208908488037 7.9157e-05 deg
M 332.5414801178492 5.2221e-05 deg
tp 2459101.459971488975
(2020-Sep-08.95997149)
0.00019204 TDB
period 1323.65436636871
3.62
1.2336e-05
3.377e-08
d
yr
n .2719743228646747 2.5348e-09 deg/d
Q 2.488576442691224 1.5462e-08 au
  Orbit Determination Parameters
   # obs. used (total)      331  
   data-arc span      6597 days (18.06 yr)  
   first obs. used      2002-04-04  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57855  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 03:15:37  

Additional Information
 Earth MOID = 1.22154 au 
 Jupiter MOID = 2.48157 au 
 T_jup = 3.545 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457164.5 (2015-May-22.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05558209003841 5.4087e-08  
q 2.228031814335483 1.3354e-07 au
tp 2457778.078850357951
(2017-Jan-24.57885036)
0.0001901 TDB
node 222.5896347383179 6.0759e-05 deg
peri 357.7951318597776 7.8888e-05 deg
i 4.782420659654398 5.0937e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      331  
   data-arc span      6597 days (18.06 yr)  
   first obs. used      2002-04-04  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57855  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 03:15:37  

Additional Information
 Jupiter MOID = 2.48157 au 
 T_jup = 3.545 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.92544524710937E-15 -7.189632634860826E-15 -3.899386668968369E-12 -1.764196350017024E-15 -9.492381975503142E-13 -2.70662910253696E-16
q -7.189632634860826E-15 1.783293695322937E-14 9.131974286960768E-12 4.605149501800362E-15 2.191806865936785E-12 6.51386917347359E-16
tp -3.899386668968369E-12 9.131974286960768E-12 3.613920857928791E-8 -3.367715389178747E-11 9.581738686742628E-9 4.404691112509991E-12
node -1.764196350017024E-15 4.605149501800362E-15 -3.367715389178747E-11 3.691611024007692E-9 -3.687351082745179E-9 -8.557673619910069E-11
peri -9.492381975503142E-13 2.191806865936785E-12 9.581738686742628E-9 -3.687351082745179E-9 6.223333671045383E-9 8.648369564203163E-11
i -2.70662910253696E-16 6.51386917347359E-16 4.404691112509991E-12 -8.557673619910069E-11 8.648369564203163E-11 2.594591511087493E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.6   n/a MPO454179  

172124 (2002 GA171)          Discovered 2002-Apr-10 by LINEAR at Socorro
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2032-Jul-05 13:06 < 00:01 Eunom 0.0436975408246422 0.0436952312181457 0.0436998511307988 5.69812669247239 5.69812663609503 2463419.045892497 0.564423118925137 362.938882605285 68.980079725226 -75.0103650739295 91612.8841428697 T 16 CATAB v2.0f-lin.ifort 2020-May-21 03:15:46 2020-May-21 03:16
2099-Sep-20 05:46 00:01 Iris 0.016786889621964 0.0167680117749212 0.0168057854171586 5.77474913453059 5.77474907522854 2487966.740013306 1.48201624870696 1281.25800658511 85.3393813844997 -42.8199306136989 20046.6955853421 T 16 CATAB v2.0f-lin.ifort 2020-May-21 03:15:46 2020-May-21 03:16

Alternate Designations
 2002 GA171 = 2003 SF265 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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