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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 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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1932-May-15 12:45 00:04 Jupiter 1.96903994516306 1.96903937178032 1.96904051854581 3.13602507321703 2.99571571544642 2426843.031389598 4.02781584704471 143.563170986786 21.9614776461209 -85.0899180747812 2357041.04319641 T 12 CATAB v2.0e-lin.ifort 2019-Jul-13 05:32:01 2019-Jul-13 05:32
1991-Jul-04 06:03 00:01 Jupiter 1.96964889846135 1.96964831967082 1.96964947725181 3.19243578896847 3.05476212572887 2448441.752427815 1.13155080066148 114.772492312507 21.1545275914532 -86.1960818187846 2311542.93402894 T 12 CATAB v2.0e-lin.ifort 2019-Jul-13 05:32:01 2019-Jul-13 05:32
2050-Aug-22 06:13 00:02 Jupiter 1.97518408832682 1.97518351436558 1.97518466228806 3.26266194361091 3.12846585098172 2470040.759068883 1.81067554835901 105.95136105646 21.4173993246062 -85.5520733663265 2435114.64720554 T 12 CATAB v2.0e-lin.ifort 2019-Jul-13 05:32:01 2019-Jul-13 05:32
2109-Oct-11 15:19 00:05 Jupiter 1.98531813301006 1.98531751172847 1.98531875429177 3.34623587196509 3.21621020395853 2491640.137898106 4.70484528463061 104.017176289556 21.4659412563615 -84.5549857660868 1885927.24209098 T 12 CATAB v2.0e-lin.ifort 2019-Jul-13 05:32:01 2019-Jul-13 05:32
2168-Nov-30 10:38 00:08 Jupiter 1.99944191368773 1.99944102012128 1.99944280725566 3.44223168107587 3.31688106639133 2513239.942806807 7.60094212602558 143.27803449796 22.4006940666574 -80.8115210352203 1578730.50157905 T 12 CATAB v2.0e-lin.ifort 2019-Jul-13 05:32:01 2019-Jul-13 05:32

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