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(2015 EE7)
Classification: Apollo [NEO]          SPK-ID: 3713271
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4108352018367897 1.6211e-07  
a 1.701743644763143 1.414e-07 au
q 1.002607450992403 1.9691e-07 au
i 27.31134917499241 1.2642e-05 deg
node 9.394301006787705 5.5357e-06 deg
peri 219.1793461646705 4.6526e-05 deg
M 100.8644855373619 0.00011638 deg
tp 2458773.317219852619
(2019-Oct-16.81721985)
0.00023385 TDB
period 810.8483418850359
2.22
0.00010106
2.767e-07
d
yr
n .4439794489350287 5.5337e-08 deg/d
Q 2.400879838533883 1.9949e-07 au
  Orbit Determination Parameters
   # obs. used (total)      288  
   # delay obs. used      1  
   # Doppler obs. used      1  
   data-arc span      1341 days (3.67 yr)  
   first obs. used      2015-03-14  
   last obs. used      2018-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .25382  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-19 08:12:07  

Additional Information
 Earth MOID = .0672252 au 
 Jupiter MOID = 2.71629 au 
 T_jup = 3.984 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457679.5 (2016-Oct-18.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4108344742396255 1.6161e-07  
q 1.002658109600842 1.9658e-07 au
tp 2457962.269647146653
(2017-Jul-27.76964715)
0.00013363 TDB
node 9.409142463634511 5.5349e-06 deg
peri 219.144915173627 4.6533e-05 deg
i 27.31484649960978 1.2643e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      288  
   # delay obs. used      1  
   # Doppler obs. used      1  
   data-arc span      1341 days (3.67 yr)  
   first obs. used      2015-03-14  
   last obs. used      2018-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .25382  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-19 08:12:07  

Additional Information
 Jupiter MOID = 2.71629 au 
 T_jup = 3.984 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.611719726320154E-14 -3.156328966721082E-14 2.117152594819515E-11 -3.595321946409859E-15 7.410246563174125E-12 7.376495867461667E-13
q -3.156328966721082E-14 3.864315783025471E-14 -2.501516783086593E-11 2.00224561993564E-14 -9.013463606532265E-12 -8.985089673198147E-13
tp 2.117152594819515E-11 -2.501516783086593E-11 1.785633253125698E-8 3.104996710899224E-11 5.971293018607621E-9 5.81140396363799E-10
node -3.595321946409859E-15 2.00224561993564E-14 3.104996710899224E-11 3.063552419503404E-11 -1.756140958976544E-11 -1.842821988338389E-11
peri 7.410246563174125E-12 -9.013463606532265E-12 5.971293018607621E-9 -1.756140958976544E-11 2.165277951963033E-9 2.206149485650816E-10
i 7.376495867461667E-13 -8.985089673198147E-13 5.81140396363799E-10 -1.842821988338389E-11 2.206149485650816E-10 1.598513878229394E-10

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 20.2   n/a MPO339521  
diameter diameter 0.294 km 0.073 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
rotation period rot_per 9.42 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Warner, B.D. (2015) Minor Planet Bull. 42, 256-266.]
geometric albedo albedo 0.170   0.090 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

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