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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1281626929397822 5.6539e-08  
a 3.07143181601034 3.3324e-08 au
q 2.677788843289529 1.8527e-07 au
i 5.975811578379071 6.5775e-06 deg
node 320.0935313596879 5.1126e-05 deg
peri 31.07976253065137 5.629e-05 deg
M 314.7447577567637 2.737e-05 deg
tp 2459447.658834196612
(2021-Aug-21.15883420)
0.00015155 TDB
period 1966.118750012408
5.38
3.1997e-05
8.76e-08
d
yr
n .1831018599449947 2.9798e-09 deg/d
Q 3.46507478873115 3.7594e-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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58301  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:32:38  

Additional Information
 Earth MOID = 1.67206 au 
 Jupiter MOID = 1.9596 au 
 T_jup = 3.210 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456889.5 (2014-Aug-20.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1283369948729041 5.598e-08  
q 2.673395244791402 1.8261e-07 au
tp 2457492.281105032420
(2016-Apr-13.78110503)
0.00013944 TDB
node 320.1531935509856 5.121e-05 deg
peri 32.44623942897444 5.6491e-05 deg
i 5.973313145983531 6.5743e-06 deg
  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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58301  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:32:38  

Additional Information
 Jupiter MOID = 1.9596 au 
 T_jup = 3.210 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.13370620854947E-15 -1.010422865238171E-14 -2.653725258432845E-12 -2.136330929218003E-14 -4.101335434515203E-13 -1.24911212492121E-15
q -1.010422865238171E-14 3.334621652356086E-14 9.43270851936924E-12 7.061781598065856E-14 1.427492697634468E-12 5.891551411431475E-15
tp -2.653725258432845E-12 9.43270851936924E-12 1.944234768655839E-8 3.953825738628568E-11 3.350221442366982E-9 2.575383068230414E-12
node -2.136330929218003E-14 7.061781598065856E-14 3.953825738628568E-11 2.622499225632706E-9 -2.600899529398347E-9 -2.851576434827599E-11
peri -4.101335434515203E-13 1.427492697634468E-12 3.350221442366982E-9 -2.600899529398347E-9 3.191256336585074E-9 2.874870154633679E-11
i -1.24911212492121E-15 5.891551411431475E-15 2.575383068230414E-12 -2.851576434827599E-11 2.874870154633679E-11 4.322147536796763E-11

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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