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117584 (2005 EP41)
Classification: Outer Main-belt Asteroid          SPK-ID: 2117584
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1077256700374327 4.0855e-08  
a 3.214714907656803 2.9002e-08 au
q 2.86840759025015 1.3566e-07 au
i 14.07885241783628 4.5258e-06 deg
node 173.6668560692557 1.7489e-05 deg
peri 3.373349960856828 2.6997e-05 deg
M 234.021116488541 2.201e-05 deg
tp 2459737.228341932601
(2022-Jun-06.72834193)
0.00013357 TDB
period 2105.290947999327
5.76
2.849e-05
7.8e-08
d
yr
n .1709977427785506 2.314e-09 deg/d
Q 3.561022225063456 3.2126e-08 au
  Orbit Determination Parameters
   # obs. used (total)      686  
   data-arc span      7923 days (21.69 yr)  
   first obs. used      1999-02-21  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54848  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 18:17:40  

Additional Information
 Earth MOID = 1.87298 au 
 Jupiter MOID = 1.40012 au 
 T_jup = 3.135 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457325.5 (2015-Oct-30.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1082105929207953 4.0929e-08  
q 2.866441441975103 1.3597e-07 au
tp 2457639.804968083091
(2016-Sep-08.30496808)
0.00012122 TDB
node 173.701548223336 1.7472e-05 deg
peri 4.750791424911257 2.6925e-05 deg
i 14.08480357614963 4.5293e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      686  
   data-arc span      7923 days (21.69 yr)  
   first obs. used      1999-02-21  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54848  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 18:17:40  

Additional Information
 Jupiter MOID = 1.40012 au 
 T_jup = 3.135 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.675198827974707E-15 -5.464505342796607E-15 -6.970810603567658E-13 -7.78615881977235E-15 -7.538338649421015E-14 -2.084334213288706E-15
q -5.464505342796607E-15 1.848820179219753E-14 3.22719255336358E-12 2.627187553119335E-14 3.883332482898735E-13 8.001359757131603E-15
tp -6.970810603567658E-13 3.22719255336358E-12 1.469384271396628E-8 1.844800940694775E-11 2.503542975061817E-9 5.322255218852089E-12
node -7.78615881977235E-15 2.627187553119335E-14 1.844800940694775E-11 3.052823332175519E-10 -2.928450748920805E-10 -5.450677885509236E-12
peri -7.538338649421015E-14 3.883332482898735E-13 2.503542975061817E-9 -2.928450748920805E-10 7.249640087575514E-10 6.17400637790891E-12
i -2.084334213288706E-15 8.001359757131603E-15 5.322255218852089E-12 -5.450677885509236E-12 6.17400637790891E-12 2.05143350952538E-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 14.4   n/a MPO417612  
diameter diameter 6.936 km 0.119 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.070   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

117584 (2005 EP41)          Discovered 2005-Mar-01 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2005 EP41 = 2002 UB54 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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