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183966 (2004 ER1)
Classification: Main-belt Asteroid          SPK-ID: 2183966
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1349290053331469 3.1436e-08  
a 2.358842766391853 1.0175e-08 au
q 2.040566458185312 7.4269e-08 au
i 6.12721430196751 4.1321e-06 deg
node 176.4239560489092 3.7879e-05 deg
peri 117.0848050698789 4.1589e-05 deg
M 61.18551894554111 1.7084e-05 deg
tp 2458775.598131537681
(2019-Oct-19.09813154)
6.2653e-05 TDB
period 1323.26527651908
3.62
8.562e-06
2.344e-08
d
yr
n .2720542935631162 1.7603e-09 deg/d
Q 2.677119074598394 1.1548e-08 au
  Orbit Determination Parameters
   # obs. used (total)      638  
   data-arc span      7071 days (19.36 yr)  
   first obs. used      2001-06-15  
   last obs. used      2020-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56303  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 08:29:33  

Additional Information
 Earth MOID = 1.03353 au 
 Jupiter MOID = 2.51022 au 
 T_jup = 3.533 
[ 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 16.2   n/a MPO494018  

183966 (2004 ER1)          Discovered 2004-Mar-11 by NEAT at Palomar
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23

[ show close-approach data ]
Alternate Designations
 2004 ER1 = 2001 LK10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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