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160509 (1990 EG5)
Classification: Main-belt Asteroid          SPK-ID: 2160509
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1739709416755323 5.2893e-08  
a 3.093698828625589 3.5592e-08 au
q 2.555485130149104 1.5837e-07 au
i 12.22799509572497 4.5244e-06 deg
node 297.7886166143193 2.7974e-05 deg
peri 290.7805166099118 3.0766e-05 deg
M 228.4785294603853 1.5027e-05 deg
tp 2459926.622060700674
(2022-Dec-13.12206070)
8.7366e-05 TDB
period 1987.538162246345
5.44
3.4299e-05
9.391e-08
d
yr
n .1811285975979061 3.1257e-09 deg/d
Q 3.631912527102074 4.1784e-08 au
  Orbit Determination Parameters
   # obs. used (total)      592  
   data-arc span      11301 days (30.94 yr)  
   first obs. used      1990-03-04  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53385  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 20:01:39  

Additional Information
 Earth MOID = 1.57499 au 
 Jupiter MOID = 1.6384 au 
 T_jup = 3.166 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457467.5 (2016-Mar-20.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1755149981347752 5.2667e-08  
q 2.548605420856023 1.5789e-07 au
tp 2457940.994774189878
(2017-Jul-06.49477419)
7.9162e-05 TDB
node 297.887633274209 2.7965e-05 deg
peri 290.9633774704067 3.073e-05 deg
i 12.23520424560785 4.5263e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      592  
   data-arc span      11301 days (30.94 yr)  
   first obs. used      1990-03-04  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53385  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 20:01:39  

Additional Information
 Jupiter MOID = 1.6384 au 
 T_jup = 3.166 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.773834126299241E-15 -8.181199840895456E-15 -9.793287820976642E-13 2.897029741464446E-15 -1.872412895037239E-13 -1.504053317697267E-16
q -8.181199840895456E-15 2.492859879112014E-14 3.073642264159044E-12 -7.091577870600502E-15 5.453206863528393E-13 2.063272023479498E-15
tp -9.793287820976642E-13 3.073642264159044E-12 6.266589033508768E-9 1.153927888695506E-11 1.070105401921199E-9 1.754887934254193E-12
node 2.897029741464446E-15 -7.091577870600502E-15 1.153927888695506E-11 7.820470241662827E-10 -7.620597386983842E-10 -1.225395349374925E-12
peri -1.872412895037239E-13 5.453206863528393E-13 1.070105401921199E-9 -7.620597386983842E-10 9.443122857600708E-10 1.359958788550653E-12
i -1.504053317697267E-16 2.063272023479498E-15 1.754887934254193E-12 -1.225395349374925E-12 1.359958788550653E-12 2.04869928939345E-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 14.51   n/a MPCxxxxx  

160509 (1990 EG5)          Discovered 1990-Mar-04 by McNaught, R. H. at Siding Spring
Reference: 20070828/Numbers.arcLast Updated: 2007-08-30

[ show close-approach data ]
Alternate Designations
 1990 EG5 = 2006 KC39 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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