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390797 (2004 ER28)
Classification: Main-belt Asteroid          SPK-ID: 2390797
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 .02620504062157566 7.4781e-08  
a 2.888387572430686 4.1024e-08 au
q 2.812697258764286 2.2948e-07 au
i 1.881030295537505 1.7669e-05 deg
node 13.6313765212005 0.00016904 deg
peri 69.75816718176615 0.00038619 deg
M 197.787226539475 0.0003494 deg
tp 2459808.412220786299
(2022-Aug-16.91222079)
0.0017477 TDB
period 1793.005527729581
4.91
3.8199e-05
1.046e-07
d
yr
n .2007801952824179 4.2775e-09 deg/d
Q 2.964077886097087 4.2099e-08 au
  Orbit Determination Parameters
   # obs. used (total)      110  
   data-arc span      5518 days (15.11 yr)  
   first obs. used      2004-03-15  
   last obs. used      2019-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63027  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 04:35:24  

Additional Information
 Earth MOID = 1.82922 au 
 Jupiter MOID = 2.08136 au 
 T_jup = 3.290 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.0   n/a MPO434441  

390797 (2004 ER28)          Discovered 2004-Mar-15 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-04-17

Alternate Designations
 2004 ER28 = 2006 UF305 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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