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447770 (2007 MU4)
Classification: Main-belt Asteroid          SPK-ID: 2447770
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1982538276225369 5.0053e-08  
a 2.34235764250851 1.5633e-08 au
q 1.877976274220296 1.1856e-07 au
i 3.380307080941747 5.7894e-06 deg
node 118.8229734252077 0.00012112 deg
peri 167.4098380850862 0.00012328 deg
M 305.7885446210305 2.1323e-05 deg
tp 2459593.681788613388
(2022-Jan-14.18178861)
7.8107e-05 TDB
period 1309.417786417835
3.58
1.3109e-05
3.589e-08
d
yr
n .2749313502032452 2.7524e-09 deg/d
Q 2.806739010796724 1.8732e-08 au
  Orbit Determination Parameters
   # obs. used (total)      119  
   data-arc span      9135 days (25.01 yr)  
   first obs. used      1996-04-11  
   last obs. used      2021-04-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51458  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 08:01:52  

Additional Information
 Earth MOID = .861438 au 
 Jupiter MOID = 2.35535 au 
 T_jup = 3.534 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457155.5 (2015-May-13.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1987134709152129 5.0055e-08  
q 1.877018595589722 1.1866e-07 au
tp 2456974.455329998045
(2014-Nov-12.95533000)
7.4668e-05 TDB
node 118.8594616142229 0.00012113 deg
peri 167.3895011356084 0.00012329 deg
i 3.380235674044354 5.79e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      119  
   data-arc span      9135 days (25.01 yr)  
   first obs. used      1996-04-11  
   last obs. used      2021-04-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51458  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 08:01:52  

Additional Information
 Jupiter MOID = 2.35535 au 
 T_jup = 3.534 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.505464717415294E-15 -5.906439005006873E-15 1.322244897117614E-12 2.986009495459035E-14 4.678239104883267E-13 2.082098657458134E-15
q -5.906439005006873E-15 1.407915601366962E-14 -3.147949729804656E-12 -7.705510149875605E-14 -1.100709653253759E-12 -4.679246828763639E-15
tp 1.322244897117614E-12 -3.147949729804656E-12 5.575361638009396E-9 8.375375571139419E-11 1.763877944381949E-9 8.673573100078311E-12
node 2.986009495459035E-14 -7.705510149875605E-14 8.375375571139419E-11 1.467214655625872E-8 -1.461860041334778E-8 1.618860311135909E-10
peri 4.678239104883267E-13 -1.100709653253759E-12 1.763877944381949E-9 -1.461860041334778E-8 1.519927864017498E-8 -1.587465236828181E-10
i 2.082098657458134E-15 -4.679246828763639E-15 8.673573100078311E-12 1.618860311135909E-10 -1.587465236828181E-10 3.352400214417928E-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 18.02   n/a MPCxxxxx  

447770 (2007 MU4)          Discovered 2007-Jun-09 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-10-28

Alternate Designations
 2007 MU4 = 2011 QA16 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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