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541947 (2012 EW10)
Classification: Main-belt Asteroid          SPK-ID: 2541947
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .120305771310492 9.9838e-08  
a 2.720834428608296 2.2969e-08 au
q 2.393502344066433 2.7313e-07 au
i 4.900067374572543 1.0341e-05 deg
node 25.84241602654991 8.4056e-05 deg
peri 153.2791392373475 8.9983e-05 deg
M 24.61007024992241 2.7843e-05 deg
tp 2459284.437075744019
(2021-Mar-10.93707574)
0.00012677 TDB
period 1639.274180140971
4.49
2.0758e-05
5.683e-08
d
yr
n .2196093883263882 2.7809e-09 deg/d
Q 3.048166513150159 2.5733e-08 au
  Orbit Determination Parameters
   # obs. used (total)      99  
   data-arc span      9916 days (27.15 yr)  
   first obs. used      1994-03-10  
   last obs. used      2021-05-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60039  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 09:01:43  

Additional Information
 Earth MOID = 1.39864 au 
 Jupiter MOID = 1.90909 au 
 T_jup = 3.343 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458249.5 (2018-May-11.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1212130673902718 9.983e-08  
q 2.390476002745177 2.7319e-07 au
tp 2457645.578548089342
(2016-Sep-14.07854809)
0.00012712 TDB
node 25.85608156596475 8.4038e-05 deg
peri 153.3773742870562 8.9874e-05 deg
i 4.901224048533089 1.0343e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      99  
   data-arc span      9916 days (27.15 yr)  
   first obs. used      1994-03-10  
   last obs. used      2021-05-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60039  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 09:01:43  

Additional Information
 Jupiter MOID = 1.90909 au 
 T_jup = 3.343 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.966068525771882E-15 -2.719880671322322E-14 -4.126886768080726E-13 -7.681944872802649E-14 -2.663038346471607E-14 4.799356922062941E-15
q -2.719880671322322E-14 7.463285575178212E-14 7.210520685244721E-13 2.090531562490154E-13 1.01936163483793E-14 -1.250413920743459E-14
tp -4.126886768080726E-13 7.210520685244721E-13 1.615942901817197E-8 -1.937260963616126E-11 4.092137359722701E-9 2.168680230308069E-12
node -7.681944872802649E-14 2.090531562490154E-13 -1.937260963616126E-11 7.062389533652775E-9 -7.041040425763394E-9 -4.302270702340876E-10
peri -2.663038346471607E-14 1.01936163483793E-14 4.092137359722701E-9 -7.041040425763394E-9 8.077306086046679E-9 4.292691939135138E-10
i 4.799356922062941E-15 -1.250413920743459E-14 2.168680230308069E-12 -4.302270702340876E-10 4.292691939135138E-10 1.069815092721073E-10

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 17.60   n/a MPCxxxxx  

541947 (2012 EW10)          Discovered 2012-Feb-26 by Spacewatch at Kitt Peak
Reference: Last Updated: 2019-12-13

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