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74982 (1999 TJ242)
Classification: Main-belt Asteroid          SPK-ID: 2074982
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1678021773403184 5.5078e-08  
a 2.415022747523858 1.1929e-08 au
q 2.009776672162956 1.3194e-07 au
i 7.337372527557809 3.531e-06 deg
node 114.5814328954289 5.1702e-05 deg
peri 308.5377581950739 5.3451e-05 deg
M 157.8027888147311 1.4531e-05 deg
tp 2458399.613511030269
(2018-Oct-08.11351103)
5.3938e-05 TDB
period 1370.819474445875
3.75
1.0157e-05
2.781e-08
d
yr
n .2626166367716088 1.9458e-09 deg/d
Q 2.820268822884759 1.393e-08 au
  Orbit Determination Parameters
   # obs. used (total)      655  
   data-arc span      7512 days (20.57 yr)  
   first obs. used      1999-10-04  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54069  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:09:52  

Additional Information
 Earth MOID = 1.03278 au 
 Jupiter MOID = 2.49276 au 
 T_jup = 3.487 
[ 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 15.7   n/a MPO468698  

74982 (1999 TJ242)          Discovered 1999-Oct-04 by CSS at Catalina
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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