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74832 (1999 TH26)
Classification: Main-belt Asteroid          SPK-ID: 2074832
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1976363455968783 3.7894e-08  
a 2.385228661390493 9.2878e-09 au
q 1.913820785340342 8.9289e-08 au
i 10.07149518872929 3.9159e-06 deg
node 214.8050456435329 2.3263e-05 deg
peri 279.5670044728967 2.6023e-05 deg
M 240.2610840878282 9.4485e-06 deg
tp 2459844.034249139989
(2022-Sep-21.53424914)
3.5321e-05 TDB
period 1345.530218501157
3.68
7.859e-06
2.152e-08
d
yr
n .2675525194826313 1.5627e-09 deg/d
Q 2.856636537440644 1.1123e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1328  
   data-arc span      7594 days (20.79 yr)  
   first obs. used      1999-10-03  
   last obs. used      2020-07-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48427  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:15:53  

Additional Information
 Earth MOID = .95792 au 
 Jupiter MOID = 2.27903 au 
 T_jup = 3.488 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.84   n/a MPCxxxxx  
diameter diameter 5.119 km 0.132 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 123.114 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.097   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74832 (1999 TH26)          Discovered 1999-Oct-03 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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