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91710 (1999 TZ149)
Classification: Main-belt Asteroid          SPK-ID: 2091710
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01713689715289836 5.3218e-08  
a 3.153833725909043 2.5603e-08 au
q 3.099786801710798 1.683e-07 au
i 15.16981394882887 5.5591e-06 deg
node 181.2429237501324 1.8746e-05 deg
peri 199.4197620992807 0.00013478 deg
M 247.8282832931791 0.0001354 deg
tp 2459637.937313634682
(2022-Feb-27.43731363)
0.00077144 TDB
period 2045.769108698426
5.60
2.4912e-05
6.821e-08
d
yr
n .1759729377422469 2.1428e-09 deg/d
Q 3.207880650107289 2.6042e-08 au
  Orbit Determination Parameters
   # obs. used (total)      825  
   data-arc span      7231 days (19.80 yr)  
   first obs. used      1999-10-02  
   last obs. used      2019-07-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57082  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:36:04  

Additional Information
 Earth MOID = 2.10019 au 
 Jupiter MOID = 1.85473 au 
 T_jup = 3.152 
[ 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 14.2   n/a MPO474795  
diameter diameter 7.556 km 0.152 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 13.564 h n/a LCDB (Rev. 2019-August); 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.]
geometric albedo albedo 0.085   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91710 (1999 TZ149)          Discovered 1999-Oct-07 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 TZ149 = 2002 ET43 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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