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295033 (2008 EU81)
Classification: Outer Main-belt Asteroid          SPK-ID: 2295033
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08453034545259554 8.3077e-08  
a 3.375057057194725 4.7048e-08 au
q 3.089762318227834 2.876e-07 au
i 7.452279097489097 1.1887e-05 deg
node 320.42460685792 4.27e-05 deg
peri 230.9413193801961 7.1784e-05 deg
M 8.669928899486472 5.4769e-05 deg
tp 2459145.957738549852
(2020-Oct-23.45773855)
0.00034462 TDB
period 2264.749151889394
6.20
4.7355e-05
1.297e-07
d
yr
n .1589580019048316 3.3238e-09 deg/d
Q 3.660351796161616 5.1025e-08 au
  Orbit Determination Parameters
   # obs. used (total)      251  
   data-arc span      7886 days (21.59 yr)  
   first obs. used      1998-09-19  
   last obs. used      2020-04-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52375  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 05:12:54  

Additional Information
 Earth MOID = 2.09711 au 
 Jupiter MOID = 1.37929 au 
 T_jup = 3.133 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457518.5 (2016-May-10.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08564466025622056 8.357e-08  
q 3.086971277149285 2.893e-07 au
tp 2456874.959511754769
(2014-Aug-05.45951175)
0.00034341 TDB
node 320.4645770479592 4.2692e-05 deg
peri 230.2668658759416 7.0885e-05 deg
i 7.452786881208184 1.1887e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      251  
   data-arc span      7886 days (21.59 yr)  
   first obs. used      1998-09-19  
   last obs. used      2020-04-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52375  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 05:12:54  

Additional Information
 Jupiter MOID = 1.37929 au 
 T_jup = 3.133 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.983898895511059E-15 -2.391430229500952E-14 -1.566735255194797E-11 -1.997193807175614E-14 -2.446326254435168E-12 -1.710625570583697E-15
q -2.391430229500952E-14 8.369620807534695E-14 5.014492391954284E-11 8.712301571824385E-14 7.849407423351841E-12 6.86968235380305E-15
tp -1.566735255194797E-11 5.014492391954284E-11 1.179329836025966E-7 5.87366555630248E-11 1.944372985088782E-8 -1.321667360207733E-11
node -1.997193807175614E-14 8.712301571824385E-14 5.87366555630248E-11 1.82261174355089E-9 -1.795333993327744E-9 1.115810157718106E-10
peri -2.446326254435168E-12 7.849407423351841E-12 1.944372985088782E-8 -1.795333993327744E-9 5.024749391668517E-9 -1.129846577566256E-10
i -1.710625570583697E-15 6.86968235380305E-15 -1.321667360207733E-11 1.115810157718106E-10 -1.129846577566256E-10 1.412990224655238E-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 14.97   n/a E2021B55  
diameter diameter 6.598 km 2.805 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.059   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

295033 (2008 EU81)          Discovered 2008-Mar-02 by LINEAR at Socorro
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

[ show close-approach data ]
Alternate Designations
 2008 EU81 = 2006 YL56 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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