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8569 Mameli (1996 TG)
Classification: Main-belt Asteroid          SPK-ID: 2008569
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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1276156789774095 3.9713e-08  
a 2.227750822471844 6.1427e-09 au
q 1.943454888669617 9.0079e-08 au
i 3.400661776958933 4.1892e-06 deg
node 322.7554152249705 5.7134e-05 deg
peri 26.26981116273452 5.8873e-05 deg
M 63.70404066975733 1.2625e-05 deg
tp 2458785.586931453825
(2019-Oct-29.08693145)
4.2718e-05 TDB
period 1214.502311991533
3.33
5.0232e-06
1.375e-08
d
yr
n .2964177148495291 1.226e-09 deg/d
Q 2.512046756274071 6.9266e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2022  
   data-arc span      12485 days (34.18 yr)  
   first obs. used      1986-09-09  
   last obs. used      2020-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50738  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 20:07:33  

Additional Information
 Earth MOID = .937455 au 
 Jupiter MOID = 2.87449 au 
 T_jup = 3.631 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456931.5 (2014-Oct-01.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1281312500666645 3.9734e-08  
q 1.942398164794148 9.0209e-08 au
tp 2456357.094482340377
(2013-Mar-05.59448234)
4.516e-05 TDB
node 322.8407133260251 5.7124e-05 deg
peri 26.31512383462769 5.8845e-05 deg
i 3.400981924618422 4.1902e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2022  
   data-arc span      12485 days (34.18 yr)  
   first obs. used      1986-09-09  
   last obs. used      2020-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50738  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 20:07:33  

Additional Information
 Jupiter MOID = 2.87449 au 
 T_jup = 3.631 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.57876810416679E-15 -3.578380585592029E-15 1.459813874158384E-13 7.158489770601502E-15 3.312402099509776E-14 -1.326583825216392E-15
q -3.578380585592029E-15 8.137708587321105E-15 -4.192893785069067E-13 -1.702927423273823E-14 -9.876638975370322E-14 3.074686532740376E-15
tp 1.459813874158384E-13 -4.192893785069067E-13 2.039415833133699E-9 -3.900081887954789E-12 6.45642680403435E-10 -9.577865685696309E-13
node 7.158489770601502E-15 -1.702927423273823E-14 -3.900081887954789E-12 3.263185781338669E-9 -3.258271023598237E-9 7.088069883938846E-11
peri 3.312402099509776E-14 -9.876638975370322E-14 6.45642680403435E-10 -3.258271023598237E-9 3.462754286927675E-9 -7.105755207270771E-11
i -1.326583825216392E-15 3.074686532740376E-15 -9.577865685696309E-13 7.088069883938846E-11 -7.105755207270771E-11 1.755814308792393E-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 14.6   n/a MPO337328  

8569 Mameli           Discovered 1996 Oct. 1 by V. S. Casulli at the Colleverde di Guidonia.
The poet Goffredo Mameli (1827-1849) was the patriotic Italian author of the national anthem Fratelli d´Italia.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040504/MPCPages.arcLast Updated: 2004-05-11

Alternate Designations
 1996 TG = 1986 RD11 = 1992 QQ2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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