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136431 (2005 ER16)
Classification: Main-belt Asteroid          SPK-ID: 2136431
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2306505583384129 3.355e-08  
a 2.362661766140357 1.0304e-08 au
q 1.817712510615263 8.359e-08 au
i 4.731456643303853 3.722e-06 deg
node 167.2373669399471 5.297e-05 deg
peri 137.0620381587366 5.3992e-05 deg
M 66.01426073253494 1.0199e-05 deg
tp 2459153.259425599513
(2020-Oct-30.75942560)
3.7189e-05 TDB
period 1326.480154628444
3.63
8.6776e-06
2.376e-08
d
yr
n .2713949385099081 1.7754e-09 deg/d
Q 2.90761102166545 1.2681e-08 au
  Orbit Determination Parameters
   # obs. used (total)      411  
   data-arc span      9132 days (25.00 yr)  
   first obs. used      1995-08-19  
   last obs. used      2020-08-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55953  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:17:24  

Additional Information
 Earth MOID = .805678 au 
 Jupiter MOID = 2.35753 au 
 T_jup = 3.509 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457554.5 (2016-Jun-15.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2300314724771846 3.3565e-08  
q 1.819973765581233 8.3585e-08 au
tp 2457826.463495146720
(2017-Mar-13.96349515)
3.6484e-05 TDB
node 167.266934636908 5.2989e-05 deg
peri 137.0875408940052 5.4018e-05 deg
i 4.72965695070627 3.7209e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      411  
   data-arc span      9132 days (25.00 yr)  
   first obs. used      1995-08-19  
   last obs. used      2020-08-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55953  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:17:24  

Additional Information
 Jupiter MOID = 2.35753 au 
 T_jup = 3.509 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.126631068436435E-15 -2.796174380377518E-15 -1.289245789740509E-13 -1.260530387779605E-14 8.794057152629778E-15 -2.943839924224964E-15
q -2.796174380377518E-15 6.986494382474596E-15 3.010325357438063E-13 3.245030943993366E-14 -3.101559475803335E-14 7.630039984170206E-15
tp -1.289245789740509E-13 3.010325357438063E-13 1.33109442739166E-9 6.527856577961194E-12 3.997432231886477E-10 2.567149436597584E-12
node -1.260530387779605E-14 3.245030943993366E-14 6.527856577961194E-12 2.807785361013977E-9 -2.796375443634384E-9 5.683420782088294E-11
peri 8.794057152629778E-15 -3.101559475803335E-14 3.997432231886477E-10 -2.796375443634384E-9 2.917951678349968E-9 -5.597164739836134E-11
i -2.943839924224964E-15 7.630039984170206E-15 2.567149436597584E-12 5.683420782088294E-11 -5.597164739836134E-11 1.384539136998951E-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 17.11   n/a E2021B55  

136431 (2005 ER16)          Discovered 2005-Mar-03 by Spacewatch at Kitt Peak
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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