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JPL Small-Body Database Browser
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66745 (1999 TO128)
Classification: Main-belt Asteroid          SPK-ID: 2066745
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1850028239368277 4.072e-08  
a 2.69560740097244 1.3957e-08 au
q 2.196912419567526 1.0884e-07 au
i 14.29053250167214 4.903e-06 deg
node 26.62700130200885 1.6331e-05 deg
peri 8.446324633488128 2.0001e-05 deg
M 246.3594134895492 1.3861e-05 deg
tp 2459510.786821729828
(2021-Oct-23.28682173)
6.4381e-05 TDB
period 1616.5285789496
4.43
1.2555e-05
3.437e-08
d
yr
n .2226994342617335 1.7296e-09 deg/d
Q 3.194302382377354 1.6539e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1039  
   data-arc span      10489 days (28.72 yr)  
   first obs. used      1990-10-14  
   last obs. used      2019-07-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54479  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 15:02:33  

Additional Information
 Earth MOID = 1.20403 au 
 Jupiter MOID = 2.26013 au 
 T_jup = 3.301 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456854.5 (2014-Jul-16.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1863968438216632 4.0651e-08  
q 2.191006522693737 1.085e-07 au
tp 2456283.409341658666
(2012-Dec-21.90934166)
5.4408e-05 TDB
node 26.67021985553793 1.6318e-05 deg
peri 8.863214887588377 1.9938e-05 deg
i 14.30341040826819 4.9064e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1039  
   data-arc span      10489 days (28.72 yr)  
   first obs. used      1990-10-14  
   last obs. used      2019-07-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54479  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 15:02:33  

Additional Information
 Jupiter MOID = 2.26013 au 
 T_jup = 3.301 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.652519427346781E-15 -4.386496803045549E-15 -1.911423719606536E-13 -3.220183894231262E-15 -4.828987616852085E-14 -5.545994377939985E-16
q -4.386496803045549E-15 1.17722617959533E-14 6.163406587341463E-13 8.157376917754232E-15 1.605533701997574E-13 2.285538158496366E-15
tp -1.911423719606536E-13 6.163406587341463E-13 2.960183497425437E-9 6.748939668315194E-12 6.377199188404916E-10 -1.400944768337025E-12
node -3.220183894231262E-15 8.157376917754232E-15 6.748939668315194E-12 2.662626106206162E-10 -2.562739654356643E-10 -5.078522679190624E-12
peri -4.828987616852085E-14 1.605533701997574E-13 6.377199188404916E-10 -2.562739654356643E-10 3.975420907056509E-10 4.7774049187756E-12
i -5.545994377939985E-16 2.285538158496366E-15 -1.400944768337025E-12 -5.078522679190624E-12 4.7774049187756E-12 2.407284075839428E-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 14.1   n/a MPO344787  
diameter diameter 4.343 km 0.377 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.148   0.063 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66745 (1999 TO128)          Discovered 1999-Oct-05 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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