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172143 (2002 JW80)
Classification: Main-belt Asteroid          SPK-ID: 2172143
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 .1489786518439848 3.4254e-08  
a 2.295857314621217 1.1459e-08 au
q 1.953823587062797 7.9026e-08 au
i 2.035089701036459 3.884e-06 deg
node 332.8174695682893 0.00011943 deg
peri 9.960469785238029 0.00012027 deg
M 318.6313303149196 1.6233e-05 deg
tp 2459146.510746625571
(2020-Oct-24.01074663)
5.7802e-05 TDB
period 1270.620234717454
3.48
9.5129e-06
2.604e-08
d
yr
n .2833261978391621 2.1212e-09 deg/d
Q 2.637891042179638 1.3166e-08 au
  Orbit Determination Parameters
   # obs. used (total)      642  
   data-arc span      6244 days (17.10 yr)  
   first obs. used      2002-03-21  
   last obs. used      2019-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54343  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 12:21:31  

Additional Information
 Earth MOID = .94579 au 
 Jupiter MOID = 2.74303 au 
 T_jup = 3.579 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456870.5 (2014-Aug-01.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .148238321101024 3.4131e-08  
q 1.954950810335248 7.8625e-08 au
tp 2456605.295128172937
(2013-Nov-08.79512817)
5.2302e-05 TDB
node 332.8813922909633 0.00011939 deg
peri 9.745606857983491 0.00012025 deg
i 2.036447123310541 3.8828e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      642  
   data-arc span      6244 days (17.10 yr)  
   first obs. used      2002-03-21  
   last obs. used      2019-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54343  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 12:21:31  

Additional Information
 Jupiter MOID = 2.74303 au 
 T_jup = 3.579 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.164920161169966E-15 -2.662951884840924E-15 4.604744298260914E-14 -1.142498339505657E-14 4.140115718778687E-15 -3.155635528801783E-16
q -2.662951884840924E-15 6.181934356657735E-15 -2.573656205392372E-14 2.617436292730047E-14 1.564081301121516E-14 7.693025331207633E-16
tp 4.604744298260914E-14 -2.573656205392372E-14 2.735498389190789E-9 1.262562591098269E-11 7.709616414047842E-10 -1.017090569220279E-12
node -1.142498339505657E-14 2.617436292730047E-14 1.262562591098269E-11 1.42538665371628E-8 -1.424072871474736E-8 -4.692956470573211E-12
peri 4.140115718778687E-15 1.564081301121516E-14 7.709616414047842E-10 -1.424072871474736E-8 1.446104374566793E-8 4.413370691288431E-12
i -3.155635528801783E-16 7.693025331207633E-16 -1.017090569220279E-12 -4.692956470573211E-12 4.413370691288431E-12 1.507612276730534E-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 16.3   n/a MPO436855  
diameter diameter 1.535 km 0.216 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 6.350 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.226   0.054 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

172143 (2002 JW80)          Discovered 2002-May-11 by LINEAR at Socorro
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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