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136432 Allenlunsford (2005 EW20)
Classification: Main-belt Asteroid          SPK-ID: 2136432
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1935672088061757 3.2158e-08  
a 2.434830554971048 1.2304e-08 au
q 1.963527200529311 8.0376e-08 au
i 3.832317317680324 3.6638e-06 deg
node 118.4323352559455 6.3206e-05 deg
peri 182.8607543254285 6.4464e-05 deg
M 242.0531990880502 1.6485e-05 deg
tp 2459455.158386889847
(2021-Aug-28.65838689)
6.5926e-05 TDB
period 1387.719022600147
3.80
1.0519e-05
2.88e-08
d
yr
n .2594185091773648 1.9664e-09 deg/d
Q 2.906133909412786 1.4686e-08 au
  Orbit Determination Parameters
   # obs. used (total)      579  
   data-arc span      10427 days (28.55 yr)  
   first obs. used      1991-10-01  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56932  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 22:38:18  

Additional Information
 Earth MOID = .948026 au 
 Jupiter MOID = 2.32134 au 
 T_jup = 3.476 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457029.5 (2015-Jan-07.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1946956066843584 3.2237e-08  
q 1.960164316267382 8.0631e-08 au
tp 2456678.485067302817
(2014-Jan-20.98506730)
5.271e-05 TDB
node 118.4887883398859 6.315e-05 deg
peri 182.6122539728872 6.4387e-05 deg
i 3.834075065364171 3.6668e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      579  
   data-arc span      10427 days (28.55 yr)  
   first obs. used      1991-10-01  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56932  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 22:38:18  

Additional Information
 Jupiter MOID = 2.32134 au 
 T_jup = 3.476 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.039212154377024E-15 -2.580203395462985E-15 1.233387647965904E-13 2.134070232068097E-16 1.716407936556634E-14 -2.003904706081736E-16
q -2.580203395462985E-15 6.50129576424983E-15 -5.222280671199461E-14 -6.591560455096362E-17 2.009784526690081E-14 5.753537940868432E-16
tp 1.233387647965904E-13 -5.222280671199461E-14 2.778292898472488E-9 1.100130031228747E-11 6.833335821731194E-10 -5.401848513800069E-13
node 2.134070232068097E-16 -6.591560455096362E-17 1.100130031228747E-11 3.987913043599907E-9 -3.975964973001151E-9 1.645208250968559E-11
peri 1.716407936556634E-14 2.009784526690081E-14 6.833335821731194E-10 -3.975964973001151E-9 4.145714107764354E-9 -1.655120242065586E-11
i -2.003904706081736E-16 5.753537940868432E-16 -5.401848513800069E-13 1.645208250968559E-11 -1.655120242065586E-11 1.344528910102139E-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 16.2   n/a MPO417720  

136432 Allenlunsford           Discovered 2005 Mar. 3 by the Catalina Sky Survey.
Allen Lunsford (b. 1968) is the OSIRIS-REx Visible and near InfraRed Spectrometer (OVIRS) algorithm lead, developing all instrument operation and calibration software, as well as leading testing. He also had roles on the New Horizons Ralph, Landsat 8 TIRS and Landsat 9 TIRS instruments.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2017-01-12Last Updated: 2017-01-17

[ show close-approach data ]
Alternate Designations
 2005 EW20 = 1998 KV29 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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