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66703 (1999 TL89)
Classification: Main-belt Asteroid          SPK-ID: 2066703
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .214414128381798 5.4757e-08  
a 2.629101183294869 1.6301e-08 au
q 2.065384744651146 1.4481e-07 au
i 2.98892065547793 4.8953e-06 deg
node 83.33728483551758 0.00010185 deg
peri 303.0613686735263 0.00010228 deg
M 293.6191565974654 1.2626e-05 deg
tp 2459287.610875241654
(2021-Mar-14.11087524)
5.6434e-05 TDB
period 1557.07444782253
4.26
1.4481e-05
3.965e-08
d
yr
n .2312028178893033 2.1502e-09 deg/d
Q 3.192817621938592 1.9796e-08 au
  Orbit Determination Parameters
   # obs. used (total)      532  
   data-arc span      14790 days (40.49 yr)  
   first obs. used      1978-11-29  
   last obs. used      2019-05-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56403  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 15:01:32  

Additional Information
 Earth MOID = 1.07167 au 
 Jupiter MOID = 2.25954 au 
 T_jup = 3.366 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457072.5 (2015-Feb-19.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2169306373974309 5.476e-08  
q 2.055908931097298 1.4509e-07 au
tp 2457732.904751091168
(2016-Dec-10.40475109)
4.7176e-05 TDB
node 83.34486208931938 0.00010185 deg
peri 303.3450698417742 0.00010227 deg
i 2.990969756249069 4.9022e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      532  
   data-arc span      14790 days (40.49 yr)  
   first obs. used      1978-11-29  
   last obs. used      2019-05-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56403  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 15:01:32  

Additional Information
 Jupiter MOID = 2.25954 au 
 T_jup = 3.366 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.998677109926291E-15 -7.916027577983249E-15 1.485302118530447E-13 -1.92618536117499E-14 -6.541709289527596E-15 -3.613989160469881E-16
q -7.916027577983249E-15 2.105080686865443E-14 -9.304185860675883E-14 5.140871928899033E-14 6.081878155144543E-14 1.017362578956868E-15
tp 1.485302118530447E-13 -9.304185860675883E-14 2.225601961730393E-9 4.595036147155349E-12 4.662102274965329E-10 -4.295543009826661E-13
node -1.92618536117499E-14 5.140871928899033E-14 4.595036147155349E-12 1.037370141450502E-8 -1.035808633826888E-8 -1.479068933118394E-10
peri -6.541709289527596E-15 6.081878155144543E-14 4.662102274965329E-10 -1.035808633826888E-8 1.045876882939934E-8 1.476073159988501E-10
i -3.613989160469881E-16 1.017362578956868E-15 -4.295543009826661E-13 -1.479068933118394E-10 1.476073159988501E-10 2.403109271093532E-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 15.7   n/a MPO436247  
diameter diameter 4.097 km 1.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.055   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66703 (1999 TL89)          Discovered 1999-Oct-02 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 TL89 = 1978 WW 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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