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JPL Small-Body Database Browser
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56166 (1999 ER6)
Classification: Main-belt Asteroid          SPK-ID: 2056166
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2067354691367378 5.6066e-08  
a 2.624532853249087 1.9809e-08 au
q 2.081948822567856 1.5437e-07 au
i 3.944197481585507 7.7728e-06 deg
node 185.4010832167392 6.5158e-05 deg
peri 231.9694472433343 6.7704e-05 deg
M 354.8694068139071 1.8702e-05 deg
tp 2458622.633063317189
(2019-May-19.13306332)
8.0823e-05 TDB
period 1553.017849044471
4.25
1.7583e-05
4.814e-08
d
yr
n .2318067369422045 2.6244e-09 deg/d
Q 3.167116883930318 2.3904e-08 au
  Orbit Determination Parameters
   # obs. used (total)      397  
   data-arc span      7714 days (21.12 yr)  
   first obs. used      1997-09-23  
   last obs. used      2018-11-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58311  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 03:23:36  

Additional Information
 Earth MOID = 1.09623 au 
 Jupiter MOID = 2.19562 au 
 T_jup = 3.369 
[ 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 16.1   n/a MPO452933  

56166 (1999 ER6)          Discovered 1999-Mar-14 by Spacewatch at Kitt Peak
Reference: 20030318/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 ER6 = 2001 QL8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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