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JPL Small-Body Database Browser
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66809 (1999 TX288)
Classification: Main-belt Asteroid          SPK-ID: 2066809
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04206182379761459 6.0126e-08  
a 2.712967752379659 1.7908e-08 au
q 2.598855380810456 1.6178e-07 au
i 4.195928152563339 5.142e-06 deg
node 312.3740575248884 8.62e-05 deg
peri 85.23709307110501 0.00010607 deg
M 209.4685973178222 6.0485e-05 deg
tp 2459682.980083275705
(2022-Apr-13.48008328)
0.0002739 TDB
period 1632.169936647662
4.47
1.6161e-05
4.425e-08
d
yr
n .2205652683074223 2.1839e-09 deg/d
Q 2.827080123948863 1.8662e-08 au
  Orbit Determination Parameters
   # obs. used (total)      670  
   data-arc span      7423 days (20.32 yr)  
   first obs. used      1999-10-02  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55469  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 15:03:40  

Additional Information
 Earth MOID = 1.6095 au 
 Jupiter MOID = 2.34992 au 
 T_jup = 3.357 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456611.5 (2013-Nov-15.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04117984979111765 5.9459e-08  
q 2.602684122452581 1.5954e-07 au
tp 2456431.478541228381
(2013-May-18.97854123)
0.00028814 TDB
node 312.4160884332373 8.6256e-05 deg
peri 88.14482120366023 0.00010748 deg
i 4.194269429011534 5.1363e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      670  
   data-arc span      7423 days (20.32 yr)  
   first obs. used      1999-10-02  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55469  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 15:03:40  

Additional Information
 Jupiter MOID = 2.34992 au 
 T_jup = 3.357 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.535325328105716E-15 -9.429047991887648E-15 -5.055263297629888E-12 -1.343687002857411E-14 -1.161949575580323E-12 -2.403126745258423E-15
q -9.429047991887648E-15 2.545362445870697E-14 1.264120363932931E-11 3.719320804437866E-14 2.915693397984555E-12 6.541542033586685E-15
tp -5.055263297629888E-12 1.264120363932931E-11 8.302668033861924E-8 8.846224219667347E-12 1.852867466784842E-8 2.064644957164376E-12
node -1.343687002857411E-14 3.719320804437866E-14 8.846224219667347E-12 7.440121986251857E-9 -7.41798968154215E-9 1.179410609702463E-10
peri -1.161949575580323E-12 2.915693397984555E-12 1.852867466784842E-8 -7.41798968154215E-9 1.155090135104621E-8 -1.171577765438572E-10
i -2.403126745258423E-15 6.541542033586685E-15 2.064644957164376E-12 1.179410609702463E-10 -1.171577765438572E-10 2.638117278142213E-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 15.0   n/a MPO280168  
diameter diameter 5.506 km 0.085 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.070   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66809 (1999 TX288)          Discovered 1999-Oct-10 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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