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74898 (1999 TL123)
Classification: Main-belt Asteroid          SPK-ID: 2074898
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1409064884627909 3.5921e-08  
a 2.383572981273804 8.2378e-09 au
q 2.047712082487727 8.755e-08 au
i 6.789691074966583 3.7486e-06 deg
node 162.7966585462135 2.7913e-05 deg
peri 204.1362353835351 3.0236e-05 deg
M 335.5980292348031 1.33e-05 deg
tp 2459487.609467720265
(2021-Sep-30.10946772)
4.9894e-05 TDB
period 1344.129484249496
3.68
6.9681e-06
1.908e-08
d
yr
n .2678313393303834 1.3885e-09 deg/d
Q 2.719433880059882 9.3985e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1629  
   data-arc span      8507 days (23.29 yr)  
   first obs. used      1998-04-24  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48204  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 01:45:33  

Additional Information
 Earth MOID = 1.04693 au 
 Jupiter MOID = 2.74044 au 
 T_jup = 3.514 
[ 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 15.0   n/a MPO333438  
rotation period rot_per 9.14474 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.]

74898 (1999 TL123)          Discovered 1999-Oct-04 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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