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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .181737821241675 9.1352e-08  
a 2.332801173720588 1.953e-08 au
q 1.908842971018586 2.1989e-07 au
i 4.691319762132175 1.0432e-05 deg
node 325.0589170423985 6.726e-05 deg
peri 231.7710112514642 7.3838e-05 deg
M 145.2327352944611 2.7141e-05 deg
tp 2458475.478569786479
(2018-Dec-22.97856979)
9.5565e-05 TDB
period 1301.412622255252
3.56
1.6343e-05
4.474e-08
d
yr
n .276622489934166 3.4739e-09 deg/d
Q 2.756759376422589 2.308e-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 = .911904 au 
 Jupiter MOID = 2.22075 au 
 T_jup = 3.543 
[ show covariance matrix ]

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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1921-Nov-16 02:09 < 00:01 Eunom 0.0220565187532039 0.022045879444598 0.0220671898863228 7.32582666603691 7.32582657916082 2423009.589750893 0.543838155456809 1445.02115874338 98.0403746907524 68.7695817771488 31371.4387674335 T 11 CATAB v2.0e-lin.ifort 2017-Dec-07 18:13:54 2018-Dec-18 00:29

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