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117808 (2005 GM178)
Classification: Main-belt Asteroid          SPK-ID: 2117808
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08902234198338689 4.9548e-08  
a 2.790932871109729 1.8473e-08 au
q 2.542477490605123 1.3157e-07 au
i 6.995571187828935 4.2391e-06 deg
node 145.2144693499963 3.1072e-05 deg
peri 33.67369482438112 3.7575e-05 deg
M 166.8018161512156 2.219e-05 deg
tp 2458411.420451902653
(2018-Oct-19.92045190)
0.00010309 TDB
period 1703.030841447914
4.66
1.6909e-05
4.629e-08
d
yr
n .2113878335250398 2.0988e-09 deg/d
Q 3.039388251614335 2.0118e-08 au
  Orbit Determination Parameters
   # obs. used (total)      601  
   data-arc span      7578 days (20.75 yr)  
   first obs. used      2000-03-11  
   last obs. used      2020-12-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55283  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:54:21  

Additional Information
 Earth MOID = 1.54979 au 
 Jupiter MOID = 1.92876 au 
 T_jup = 3.312 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457499.5 (2016-Apr-21.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08658666038779884 4.9574e-08  
q 2.551018026076148 1.3135e-07 au
tp 2456704.011289005476
(2014-Feb-15.51128901)
0.000104 TDB
node 145.3249537688612 3.115e-05 deg
peri 33.25807756617423 3.7978e-05 deg
i 6.984466241944427 4.2329e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      601  
   data-arc span      7578 days (20.75 yr)  
   first obs. used      2000-03-11  
   last obs. used      2020-12-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55283  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:54:21  

Additional Information
 Jupiter MOID = 1.92876 au 
 T_jup = 3.312 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.457577825702795E-15 -6.469138921073078E-15 3.090809641582593E-13 6.721555679854352E-15 -1.330318964190729E-15 -3.102519468473993E-15
q -6.469138921073078E-15 1.725321858340356E-14 -7.741877476946306E-13 -1.671261128332695E-14 3.131840698780929E-14 8.494645633567833E-15
tp 3.090809641582593E-13 -7.741877476946306E-13 1.081498573104007E-8 -4.288678245794136E-12 2.267404477678049E-9 -5.066969588523285E-12
node 6.721555679854352E-15 -1.671261128332695E-14 -4.288678245794136E-12 9.703281286406989E-10 -9.637924001630859E-10 9.39646528697786E-12
peri -1.330318964190729E-15 3.131840698780929E-14 2.267404477678049E-9 -9.637924001630859E-10 1.442314168871803E-9 -1.031295494767956E-11
i -3.102519468473993E-15 8.494645633567833E-15 -5.066969588523285E-12 9.39646528697786E-12 -1.031295494767956E-11 1.791753487693841E-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 15.54   n/a E2021B55  

117808 (2005 GM178)          Discovered 2005-Apr-15 by CSS at Catalina
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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Alternate Designations
 2005 GM178 = 2002 TT341 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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