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74885 (1999 TY110)
Classification: Main-belt Asteroid          SPK-ID: 2074885
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1311893765299079 6.3192e-08  
a 2.314317254901008 1.4428e-08 au
q 2.010703417138137 1.5074e-07 au
i 6.158604324542929 5.7437e-06 deg
node 286.4694174871836 5.3588e-05 deg
peri 26.75626061494381 5.8107e-05 deg
M 354.2299277574213 2.6677e-05 deg
tp 2459021.111591032509
(2020-Jun-20.61159103)
9.5381e-05 TDB
period 1285.975713951745
3.52
1.2026e-05
3.293e-08
d
yr
n .2799430783134593 2.6179e-09 deg/d
Q 2.61793109266388 1.6321e-08 au
  Orbit Determination Parameters
   # obs. used (total)      680  
   data-arc span      7661 days (20.97 yr)  
   first obs. used      1998-04-19  
   last obs. used      2019-04-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57963  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:42:42  

Additional Information
 Earth MOID = .998512 au 
 Jupiter MOID = 2.62215 au 
 T_jup = 3.563 
[ 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 15.6   n/a MPO436307  
rotation period rot_per 20.87 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:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]

74885 (1999 TY110)          Discovered 1999-Oct-04 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 TY110 = 2001 DC40 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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