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175194 (2005 EL268)
Classification: Main-belt Asteroid          SPK-ID: 2175194
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1825235778954185 5.692e-08  
a 2.472882821844749 1.5334e-08 au
q 2.021523401485526 1.3985e-07 au
i 15.20676275316609 6.4284e-06 deg
node 1.688897196518075 1.3663e-05 deg
peri 8.86916273041316 1.9593e-05 deg
M 198.6825411810826 1.2031e-05 deg
tp 2459836.976839253879
(2022-Sep-14.47683925)
4.8447e-05 TDB
period 1420.377334288423
3.89
1.3211e-05
3.617e-08
d
yr
n .2534537769010176 2.3575e-09 deg/d
Q 2.924242242203971 1.8133e-08 au
  Orbit Determination Parameters
   # obs. used (total)      743  
   data-arc span      7528 days (20.61 yr)  
   first obs. used      1999-10-31  
   last obs. used      2020-06-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50227  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:04:24  

Additional Information
 Earth MOID = 1.02016 au 
 Jupiter MOID = 2.54364 au 
 T_jup = 3.412 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457450.5 (2016-Mar-03.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1814813975683375 5.7277e-08  
q 2.025253929114554 1.407e-07 au
tp 2456992.285824116779
(2014-Nov-30.78582412)
5.0129e-05 TDB
node 1.727955790339561 1.3654e-05 deg
peri 8.33836394651448 1.9655e-05 deg
i 15.21179848901985 6.4321e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      743  
   data-arc span      7528 days (20.61 yr)  
   first obs. used      1999-10-31  
   last obs. used      2020-06-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50227  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:04:24  

Additional Information
 Jupiter MOID = 2.54364 au 
 T_jup = 3.412 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.280655924769222E-15 -8.027497149524182E-15 -1.811294318314456E-12 6.521242766841876E-15 -5.203608395477903E-13 6.752282780900928E-16
q -8.027497149524182E-15 1.979656556406934E-14 4.293477143342612E-12 -1.821182555490533E-14 1.253357877487586E-12 -9.270583037485577E-18
tp -1.811294318314456E-12 4.293477143342612E-12 2.512949216940866E-9 -5.680881029570682E-12 7.139636986329992E-10 -2.843963679153843E-12
node 6.521242766841876E-15 -1.821182555490533E-14 -5.680881029570682E-12 1.864184438969947E-10 -1.811192247164113E-10 -3.47100848172018E-11
peri -5.203608395477903E-13 1.253357877487586E-12 7.139636986329992E-10 -1.811192247164113E-10 3.86320111230836E-10 3.276162625780351E-11
i 6.752282780900928E-16 -9.270583037485577E-18 -2.843963679153843E-12 -3.47100848172018E-11 3.276162625780351E-11 4.137143631405783E-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 15.66   n/a E2021B55  
diameter diameter 4.920 km 0.118 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.035   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

175194 (2005 EL268)          Discovered 2005-Mar-14 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

Alternate Designations
 2005 EL268 = 2003 XG39 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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