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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2173317573621808 6.5445e-08  
a 2.292563433113967 1.9056e-08 au
q 1.794316593331034 1.5463e-07 au
i 24.4694746604052 8.2535e-06 deg
node 109.0754311542051 1.4987e-05 deg
peri 136.4606273214007 2.5759e-05 deg
M 46.93536627833351 2.6923e-05 deg
tp 2457435.197973015659
(2016-Feb-16.69797302)
9.3421e-05 JED
period 1267.88676499225
3.47
1.5808e-05
4.328e-08
d
yr
n .2839370280848389 3.5402e-09 deg/d
Q 2.790810272896899 2.3197e-08 au
  Orbit Determination Parameters
   # obs. used (total)      739  
   data-arc span      6566 days (17.98 yr)  
   first obs. used      1998-04-22  
   last obs. used      2016-04-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53558  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 14:21:14  

Additional Information
 Earth MOID = .827869 au 
 Jupiter MOID = 2.44238 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. 2016-February); 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. (2016) 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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