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66802 (1999 TJ270)
Classification: Main-belt Asteroid          SPK-ID: 2066802
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02446284873746943 3.6477e-08  
a 2.734819925025473 1.5558e-08 au
q 2.667918438875358 1.0605e-07 au
i 8.622710501785255 3.9557e-06 deg
node 248.5660913707443 3.3366e-05 deg
peri 34.46081222965841 0.0001179 deg
M 340.1438140190082 0.00011343 deg
tp 2459291.613947145530
(2021-Mar-18.11394715)
0.00052042 TDB
period 1651.929580222055
4.52
1.4096e-05
3.859e-08
d
yr
n .217926965114099 1.8596e-09 deg/d
Q 2.801721411175588 1.5938e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1402  
   data-arc span      7614 days (20.85 yr)  
   first obs. used      1999-09-05  
   last obs. used      2020-07-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49381  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:25:02  

Additional Information
 Earth MOID = 1.65395 au 
 Jupiter MOID = 2.23866 au 
 T_jup = 3.336 
[ 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 14.15   n/a E2021B10  
diameter diameter 4.890 km 0.249 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.203   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66802 (1999 TJ270)          Discovered 1999-Oct-03 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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