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129333 Ashleylancaster (2005 UR55)
Classification: Main-belt Asteroid          SPK-ID: 2129333
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1877742102228241 4.8658e-08  
a 3.089153878646913 3.1834e-08 au
q 2.509090448827215 1.6274e-07 au
i 1.350820678649909 5.1769e-06 deg
node 38.76209029065141 0.00023275 deg
peri 351.798528594069 0.0002333 deg
M 263.9265540344268 2.0898e-05 deg
tp 2459529.747246992502
(2021-Nov-11.24724699)
0.00012145 TDB
period 1983.159935634809
5.43
3.0655e-05
8.393e-08
d
yr
n .1815284756066656 2.806e-09 deg/d
Q 3.669217308466611 3.7812e-08 au
  Orbit Determination Parameters
   # obs. used (total)      494  
   data-arc span      6753 days (18.49 yr)  
   first obs. used      2000-11-30  
   last obs. used      2019-05-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5506  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:50:00  

Additional Information
 Earth MOID = 1.51464 au 
 Jupiter MOID = 1.77591 au 
 T_jup = 3.198 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456684.5 (2014-Jan-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1918636026343011 4.8525e-08  
q 2.48957440822732 1.6197e-07 au
tp 2457553.930588298279
(2016-Jun-14.43058830)
9.7911e-05 TDB
node 38.85298039625492 0.00023173 deg
peri 352.2766052058343 0.00023225 deg
i 1.355922551407131 5.1918e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      494  
   data-arc span      6753 days (18.49 yr)  
   first obs. used      2000-11-30  
   last obs. used      2019-05-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5506  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:50:00  

Additional Information
 Jupiter MOID = 1.77591 au 
 T_jup = 3.198 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.354723537811226E-15 -7.777121732342283E-15 -1.457709479691661E-12 -4.967848529794669E-15 -1.827710910940401E-13 -4.709993084212932E-16
q -7.777121732342283E-15 2.623477562262833E-14 6.049324288892712E-12 1.848875243765516E-14 7.607871378329179E-13 1.827164541999961E-15
tp -1.457709479691661E-12 6.049324288892712E-12 9.586578590691882E-9 1.854403804503226E-11 1.550173875700953E-9 1.372301152063165E-12
node -4.967848529794669E-15 1.848875243765516E-14 1.854403804503226E-11 5.369928957311911E-8 -5.368098544053985E-8 -9.35426907423254E-11
peri -1.827710910940401E-13 7.607871378329179E-13 1.550173875700953E-9 -5.368098544053985E-8 5.394107308629973E-8 9.371165424813139E-11
i -4.709993084212932E-16 1.827164541999961E-15 1.372301152063165E-12 -9.35426907423254E-11 9.371165424813139E-11 2.695465526787645E-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 15.1   n/a MPO475132  
diameter diameter 5.865 km 0.164 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.051   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

129333 Ashleylancaster           Discovered 2005 Oct. 23 by the Catalina Sky Survey.
Ashley Lancaster (b. 1990) worked as a test engineer on the OSIRIS-REx Asteroid Sample Return Mission OCAMS camera. She also worked on the ATST Solar Telescope.
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 2016-08-18Last Updated: 2016-08-22

[ show close-approach data ]
Alternate Designations
 2005 UR55 = 2000 WQ192 = 2004 OP6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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