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181707 (1992 EN6)
Classification: Main-belt Asteroid          SPK-ID: 2181707
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07009365243189121 4.5115e-08  
a 3.101704244483578 2.6658e-08 au
q 2.884294465224224 1.3344e-07 au
i 17.71145396294098 4.2192e-06 deg
node 141.6911681606406 1.7963e-05 deg
peri 47.64895444803579 4.2345e-05 deg
M 76.9372129716604 3.6992e-05 deg
tp 2458774.084529466468
(2019-Oct-17.58452947)
0.00020523 TDB
period 1995.257736313069
5.46
2.5723e-05
7.043e-08
d
yr
n .1804278181450507 2.3261e-09 deg/d
Q 3.319114023742932 2.8526e-08 au
  Orbit Determination Parameters
   # obs. used (total)      485  
   data-arc span      10370 days (28.39 yr)  
   first obs. used      1992-02-27  
   last obs. used      2020-07-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51475  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:31:42  

Additional Information
 Earth MOID = 1.91647 au 
 Jupiter MOID = 1.7316 au 
 T_jup = 3.145 
[ 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 15.16   n/a E2021B55  
diameter diameter 5.638 km 0.410 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.061   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

181707 (1992 EN6)          Discovered 1992-Mar-01 by UESAC at La Silla
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23

[ show close-approach data ]
Alternate Designations
 1992 EN6 = 2003 GU16 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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