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100539 (1997 EN13)
Classification: Main-belt Asteroid          SPK-ID: 2100539
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1282324287109301 5.6366e-08  
a 3.068756231096181 3.2866e-08 au
q 2.675242166460917 1.8427e-07 au
i 5.974198218312041 6.5756e-06 deg
node 320.1100619899995 5.1179e-05 deg
peri 31.50096688502528 5.6394e-05 deg
M 277.7039687503403 2.7215e-05 deg
tp 2459449.367751258386
(2021-Aug-22.86775126)
0.00015204 TDB
period 1963.550222279852
5.38
3.1544e-05
8.636e-08
d
yr
n .1833413762047852 2.9453e-09 deg/d
Q 3.462270295731444 3.708e-08 au
  Orbit Determination Parameters
   # obs. used (total)      349  
   data-arc span      8088 days (22.14 yr)  
   first obs. used      1997-03-03  
   last obs. used      2019-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5905  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 05:31:56  

Additional Information
 Earth MOID = 1.67144 au 
 Jupiter MOID = 1.96381 au 
 T_jup = 3.211 
[ 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 15.3   n/a MPO436468  
diameter diameter 3.057 km 0.651 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.157   0.090 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100539 (1997 EN13)          Discovered 1997-Mar-03 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1997 EN13 = 2000 UL97 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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