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42930 (1999 TM11)
Classification: Main-belt Asteroid          SPK-ID: 2042930
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2172883332691022 6.6092e-08  
a 2.292395335098949 1.9597e-08 au
q 1.794284573541433 1.5637e-07 au
i 24.47017152282853 8.2635e-06 deg
node 109.0754814466133 1.5359e-05 deg
peri 136.4416325828046 2.6189e-05 deg
M 350.1590901101636 2.7032e-05 deg
tp 2457435.154964257410
(2016-Feb-16.65496426)
9.5497e-05 JED
period 1267.747319336019
3.47
1.6256e-05
4.451e-08
d
yr
n .2839682596911737 3.6413e-09 deg/d
Q 2.790506096656464 2.3855e-08 au
  Orbit Determination Parameters
   # obs. used (total)      736  
   data-arc span      6207 days (16.99 yr)  
   first obs. used      1998-04-22  
   last obs. used      2015-04-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52996  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 15:41:20  

Additional Information
 Earth MOID = .826669 au 
 Jupiter MOID = 2.4415 au 
 T_jup = 3.449 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.1 mag n/a MPO337603  
rotation period rot_per 3.5727 h n/a LCDB (Rev. 2015-December); 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.]

42930 (1999 TM11)          Discovered 1999-Oct-06 by McNaught, R. H. at Siding Spring
Reference: 20020624/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 TM11 = 1998 HL4 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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