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66765 (1999 TJ191)
Classification: Main-belt Asteroid          SPK-ID: 2066765
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03992528672781712 3.6602e-08  
a 3.133305127368172 2.4963e-08 au
q 3.008207021752258 1.1472e-07 au
i 17.04842137072802 4.2599e-06 deg
node 242.8090801468559 1.4777e-05 deg
peri 350.5691027272092 6.6733e-05 deg
M 92.3308196910335 6.3632e-05 deg
tp 2458680.926908153082
(2019-Jul-16.42690815)
0.00036074 TDB
period 2025.827493905107
5.55
2.421e-05
6.628e-08
d
yr
n .1777051605248196 2.1237e-09 deg/d
Q 3.258403232984085 2.596e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1828  
   data-arc span      8215 days (22.49 yr)  
   first obs. used      1998-06-26  
   last obs. used      2020-12-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40218  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:24:48  

Additional Information
 Earth MOID = 1.99546 au 
 Jupiter MOID = 1.76999 au 
 T_jup = 3.143 
[ 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 13.36   n/a MPCxxxxx  
diameter diameter 9.246 km 0.176 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 7.473 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.130   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66765 (1999 TJ191)          Discovered 1999-Oct-12 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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