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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09073836484220932 4.2088e-08  
a 3.247180258308988 2.8948e-08 au
q 2.952536431322127 1.4347e-07 au
i 6.681732705591541 4.3936e-06 deg
node 69.15610302638849 3.8823e-05 deg
peri 355.7228043922393 4.6123e-05 deg
M 340.774533181992 2.4424e-05 deg
tp 2459314.638567298540
(2021-Apr-10.13856730)
0.00014496 TDB
period 2137.263277736729
5.85
2.858e-05
7.825e-08
d
yr
n .1684397068671973 2.2524e-09 deg/d
Q 3.541824085295848 3.1574e-08 au
  Orbit Determination Parameters
   # obs. used (total)      500  
   data-arc span      12360 days (33.84 yr)  
   first obs. used      1987-04-01  
   last obs. used      2021-02-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52327  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:42:17  

Additional Information
 Earth MOID = 1.96552 au 
 Jupiter MOID = 1.74633 au 
 T_jup = 3.165 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457752.5 (2016-Dec-30.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08660732032868725 4.1749e-08  
q 2.972442698318708 1.4049e-07 au
tp 2457154.765897754468
(2015-May-12.26589775)
0.00015871 TDB
node 69.30320849518365 3.9014e-05 deg
peri 352.8513644423825 4.7116e-05 deg
i 6.664194166207547 4.3835e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      500  
   data-arc span      12360 days (33.84 yr)  
   first obs. used      1987-04-01  
   last obs. used      2021-02-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52327  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:42:17  

Additional Information
 Jupiter MOID = 1.74633 au 
 T_jup = 3.165 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.742993916654E-15 -5.76027459651145E-15 -1.985982064767906E-12 -7.410062206391335E-15 -2.954459969524054E-13 -3.396305946842607E-16
q -5.76027459651145E-15 1.973633613961641E-14 5.491664574309406E-12 2.900957088908114E-14 8.272399650179353E-13 1.453897307825308E-15
tp -1.985982064767906E-12 5.491664574309406E-12 2.518806083171973E-8 6.408676403814516E-12 4.21812790805369E-9 2.529786228691501E-12
node -7.410062206391335E-15 2.900957088908114E-14 6.408676403814516E-12 1.522074619447152E-9 -1.510943536230592E-9 -5.511834560517295E-11
peri -2.954459969524054E-13 8.272399650179353E-13 4.21812790805369E-9 -1.510943536230592E-9 2.219915481854127E-9 5.515658749420348E-11
i -3.396305946842607E-16 1.453897307825308E-15 2.529786228691501E-12 -5.511834560517295E-11 5.515658749420348E-11 1.921504841759076E-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 15.24   n/a E2021B55  
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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