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187932 (2001 EX23)
Classification: Main-belt Asteroid          SPK-ID: 2187932
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1345469563311796 3.4134e-08  
a 2.232093447498714 7.0978e-09 au
q 1.931772067890992 7.7406e-08 au
i 5.11086239415521 3.6493e-06 deg
node 160.957954039312 4.1724e-05 deg
peri 64.36705519298361 4.4037e-05 deg
M 291.0125311290085 1.3352e-05 deg
tp 2459433.918189449162
(2021-Aug-07.41818945)
4.536e-05 TDB
period 1218.055243610081
3.33
5.8099e-06
1.591e-08
d
yr
n .2955530973562654 1.4097e-09 deg/d
Q 2.532414827106435 8.0528e-09 au
  Orbit Determination Parameters
   # obs. used (total)      552  
   data-arc span      10984 days (30.07 yr)  
   first obs. used      1991-03-13  
   last obs. used      2021-04-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56248  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:15:28  

Additional Information
 Earth MOID = .928356 au 
 Jupiter MOID = 2.44978 au 
 T_jup = 3.624 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457688.5 (2016-Oct-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1348331131531052 3.4137e-08  
q 1.930821341853887 7.7427e-08 au
tp 2458216.477687291705
(2018-Apr-07.97768729)
4.4566e-05 TDB
node 160.991146222242 4.1717e-05 deg
peri 64.47113469218456 4.402e-05 deg
i 5.111469610450124 3.6501e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      552  
   data-arc span      10984 days (30.07 yr)  
   first obs. used      1991-03-13  
   last obs. used      2021-04-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56248  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:15:28  

Additional Information
 Jupiter MOID = 2.44978 au 
 T_jup = 3.624 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.165344300891857E-15 -2.635041169128554E-15 -1.140126675865419E-13 -7.819096006735203E-15 -2.321281811260845E-14 -2.889378449540834E-15
q -2.635041169128554E-15 5.994880509380205E-15 2.664320392585465E-13 1.793432654952089E-14 4.975517677269734E-14 6.643788461395942E-15
tp -1.140126675865419E-13 2.664320392585465E-13 1.986097925097193E-9 -4.649600386976394E-13 6.367352730195969E-10 -5.544548631348495E-13
node -7.819096006735203E-15 1.793432654952089E-14 -4.649600386976394E-13 1.740288080852709E-9 -1.733168997839175E-9 1.493845695957733E-11
peri -2.321281811260845E-14 4.975517677269734E-14 6.367352730195969E-10 -1.733168997839175E-9 1.937762534759867E-9 -1.511673108901623E-11
i -2.889378449540834E-15 6.643788461395942E-15 -5.544548631348495E-13 1.493845695957733E-11 -1.511673108901623E-11 1.332334460065739E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.91   n/a MPCxxxxx  

187932 (2001 EX23)          Discovered 2001-Mar-15 by NEAT at Haleakala
Reference: 20080618/Numbers.arcLast Updated: 2008-06-20
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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