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469181 (2016 ER201)
Classification: Main-belt Asteroid          SPK-ID: 2469181
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1980353374648717 7.3572e-08  
a 2.56741963154869 3.3546e-08 au
q 2.058979818401009 1.9358e-07 au
i 13.5541558680601 6.6304e-06 deg
node 307.7544449284745 3.1346e-05 deg
peri 198.770701517358 3.6527e-05 deg
M 43.20844977910141 1.8447e-05 deg
tp 2458820.152594989143
(2019-Dec-02.65259499)
7.7407e-05 TDB
period 1502.601137875371
4.11
2.9449e-05
8.063e-08
d
yr
n .2395845383885628 4.6956e-09 deg/d
Q 3.075859444696372 4.0189e-08 au
  Orbit Determination Parameters
   # obs. used (total)      142  
   data-arc span      7799 days (21.35 yr)  
   first obs. used      1998-12-17  
   last obs. used      2020-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61684  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 04:46:23  

Additional Information
 Earth MOID = 1.07605 au 
 Jupiter MOID = 1.98391 au 
 T_jup = 3.365 
[ 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 16.3   n/a MPO380656  

469181 (2016 ER201)          Discovered 2009-Jul-28 by Spacewatch at Kitt Peak
Reference: Last Updated: 2016-06-21

[ show close-approach data ]
Alternate Designations
 2016 ER201 = 2009 OP17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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