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9942 (1989 TM1)
Classification: Main-belt Asteroid          SPK-ID: 2009942
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1651649210330308 7.1947e-08  
a 2.596185821484571 1.9252e-08 AU
q 2.167386995291998 1.8918e-07 AU
i 9.933534357815972 9.6589e-06 deg
node 21.77730288776941 2.8876e-05 deg
peri 38.37348441939353 3.8685e-05 deg
M 342.538489479173 2.2564e-05 deg
tp 2457074.610782148039
(2015-Feb-21.11078215)
9.5679e-05 JED
period 1527.925178149504
4.18
1.6995e-05
4.653e-08
d
yr
n .2356136315758617 2.6207e-09 deg/d
Q 3.024984647677145 2.2431e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      986  
   data-arc span      9226 days (25.26 yr)  
   first obs. used      1989-09-30  
   last obs. used      2015-01-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51482  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 13:27:35  

Additional Information
 Earth MOID = 1.18794 AU 
 T_jup = 3.377 
[ 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 13.5 mag n/a MPO313499  

9942 (1989 TM1)          Discovered 1989-Oct-08 by Hioki, T., Kawasato, N. at Okutama (877)
Reference: 19990202/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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