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198765 (2005 EX94)
Classification: Outer Main-belt Asteroid          SPK-ID: 2198765
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09055443501975791 4.2111e-08  
a 3.246667842385336 2.9611e-08 au
q 2.952667670221315 1.4362e-07 au
i 6.681965301528068 4.4009e-06 deg
node 69.15412252325723 3.9987e-05 deg
peri 355.7233429457618 4.7304e-05 deg
M 307.0706783254602 2.5075e-05 deg
tp 2459314.658665534300
(2021-Apr-10.15866553)
0.00014886 TDB
period 2136.757396737056
5.85
2.9233e-05
8.004e-08
d
yr
n .1684795852583636 2.3049e-09 deg/d
Q 3.540668014549357 3.2293e-08 au
  Orbit Determination Parameters
   # obs. used (total)      490  
   data-arc span      12283 days (33.63 yr)  
   first obs. used      1987-04-01  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52482  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 23:42:40  

Additional Information
 Earth MOID = 1.96626 au 
 Jupiter MOID = 1.74706 au 
 T_jup = 3.165 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457669.5 (2016-Oct-08.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08655131527475238 4.1793e-08  
q 2.9712551645954 1.4087e-07 au
tp 2457153.211715592895
(2015-May-10.71171559)
0.00016108 TDB
node 69.32673762877157 4.0197e-05 deg
peri 352.517965258319 4.8284e-05 deg
i 6.663888140522658 4.3894e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      490  
   data-arc span      12283 days (33.63 yr)  
   first obs. used      1987-04-01  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52482  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 23:42:40  

Additional Information
 Jupiter MOID = 1.74706 au 
 T_jup = 3.165 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.746626391367459E-15 -5.778466695452424E-15 -2.010831785764149E-12 -9.050418739576357E-15 -2.982446874527339E-13 -3.507362128463209E-16
q -5.778466695452424E-15 1.984402177286077E-14 5.737335701142538E-12 3.541479436590559E-14 8.610857036053486E-13 1.783861002949818E-15
tp -2.010831785764149E-12 5.737335701142538E-12 2.594567747549239E-8 9.403262383369984E-12 4.338185596737345E-9 3.024057369981489E-12
node -9.050418739576357E-15 3.541479436590559E-14 9.403262383369984E-12 1.615781792076361E-9 -1.603500783610153E-9 -5.302967570909286E-11
peri -2.982446874527339E-13 8.610857036053486E-13 4.338185596737345E-9 -1.603500783610153E-9 2.331384875155715E-9 5.316987901941415E-11
i -3.507362128463209E-16 1.783861002949818E-15 3.024057369981489E-12 -5.302967570909286E-11 5.316987901941415E-11 1.926717943728159E-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 15.1   n/a MPO449974  
diameter diameter 5.400 km 0.392 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.066   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

198765 (2005 EX94)          Discovered 2005-Mar-10 by Lowe, A. at Mayhill
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

[ show close-approach data ]
Alternate Designations
 2005 EX94 = 2003 YF73 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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