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295037 (2008 ER89)
Classification: Main-belt Asteroid          SPK-ID: 2295037
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1813886336476488 9.1381e-08  
a 2.333925395232635 1.9368e-08 au
q 1.910577856755839 2.1988e-07 au
i 4.688965239990299 1.0427e-05 deg
node 325.0811309579784 6.7302e-05 deg
peri 231.9345933062224 7.3903e-05 deg
M 34.46634362831816 2.666e-05 deg
tp 2458475.812879934166
(2018-Dec-23.31287993)
9.5899e-05 TDB
period 1302.353499047113
3.57
1.6211e-05
4.438e-08
d
yr
n .2764226458203549 3.4407e-09 deg/d
Q 2.757272933709431 2.2881e-08 au
  Orbit Determination Parameters
   # obs. used (total)      182  
   data-arc span      7592 days (20.79 yr)  
   first obs. used      1997-02-14  
   last obs. used      2017-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52419  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Dec-07 18:13:52  

Additional Information
 Earth MOID = .913935 au 
 Jupiter MOID = 2.22151 au 
 T_jup = 3.542 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456577.5 (2013-Oct-12.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1817375518286781 9.1123e-08  
q 1.908847451942967 2.1927e-07 au
tp 2457173.269145433933
(2015-May-30.76914543)
9.1155e-05 TDB
node 325.1250666529646 6.7312e-05 deg
peri 231.8541146307987 7.3903e-05 deg
i 4.689561853236964 1.0427e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      182  
   data-arc span      7592 days (20.79 yr)  
   first obs. used      1997-02-14  
   last obs. used      2017-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52419  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Dec-07 18:13:52  

Additional Information
 Jupiter MOID = 2.22151 au 
 T_jup = 3.542 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.303469946848493E-15 -1.993595217360644E-14 -4.578121360262073E-12 7.520769208195173E-14 -1.254567515556876E-12 -1.463950482903691E-14
q -1.993595217360644E-14 4.807947886173689E-14 1.095303653987618E-11 -1.799636876713834E-13 2.964424567353646E-12 3.643596498483732E-14
tp -4.578121360262073E-12 1.095303653987618E-11 8.30921608268858E-9 -6.895894107411453E-11 2.773325749542319E-9 9.707274489195472E-12
node 7.520769208195173E-14 -1.799636876713834E-13 -6.895894107411453E-11 4.530944034942996E-9 -4.534312725742107E-9 2.575087965363572E-10
peri -1.254567515556876E-12 2.964424567353646E-12 2.773325749542319E-9 -4.534312725742107E-9 5.461640476039988E-9 -2.541357047233907E-10
i -1.463950482903691E-14 3.643596498483732E-14 9.707274489195472E-12 2.575087965363572E-10 -2.541357047233907E-10 1.087188316088583E-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 16.9   n/a MPO433901  

295037 (2008 ER89)          Discovered 2008-Mar-10 by LINEAR at Socorro
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

[ show close-approach data ]
Alternate Designations
 2008 ER89 = 2005 NY47 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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