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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04206182677904275 5.525e-08  
a 2.712967753465672 1.6317e-08 au
q 2.598855373762269 1.513e-07 au
i 4.195927058390384 4.6445e-06 deg
node 312.3740492469345 8.2665e-05 deg
peri 85.23709651263823 9.8921e-05 deg
M 209.4686015136324 5.4818e-05 deg
tp 2459682.980064662517
(2022-Apr-13.48006466)
0.00024945 TDB
period 1632.169937627708
4.47
1.4725e-05
4.031e-08
d
yr
n .2205652681749826 1.9899e-09 deg/d
Q 2.827080133169073 1.7004e-08 au
  Orbit Determination Parameters
   # obs. used (total)      702  
   data-arc span      7562 days (20.70 yr)  
   first obs. used      1999-10-02  
   last obs. used      2020-06-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55583  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:15:45  

Additional Information
 Earth MOID = 1.6095 au 
 Jupiter MOID = 2.34992 au 
 T_jup = 3.357 
[ show covariance matrix ]

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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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2077-Dec-06 15:42 00:07 Hygie 0.041462092865645 0.0414481529348516 0.0414760333076922 2.22180802396173 2.221807604546 2480009.153932823 7.42650995367847 729.773953733373 64.7828105323856 18.5656626768369 31348.3498576662 T 18 CATAB v2.0f-lin.ifort 2020-Jun-23 23:15:57 2020-Jun-23 23:16
2087-Dec-03 04:29 00:02 Eunom 0.0270954203399132 0.027092377475022 0.0270984740839489 3.52556741754874 3.52556727059895 2483657.686838407 1.62286880464053 945.106429184909 60.7131262900238 81.5220780515659 65947.630037797 T 18 CATAB v2.0f-lin.ifort 2020-Jun-23 23:15:57 2020-Jun-23 23:16
2185-Mar-18 06:11 00:24 Iris 0.0459414810949442 0.0459395596796024 0.0459434165182891 2.7791455487732 2.77914550374788 2519191.757403372 24.2060395093884 1639.50773705751 61.0460559915226 -87.3942815826042 112339.970342784 T 18 CATAB v2.0f-lin.ifort 2020-Jun-23 23:15:57 2020-Jun-23 23:16
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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