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40769 (1999 TJ18)
Classification: Main-belt Asteroid          SPK-ID: 2040769
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04319023968146978 6.8404e-08  
a 3.045654535267505 2.8065e-08 au
q 2.914111985902347 2.1769e-07 au
i 10.80572475344339 7.1617e-06 deg
node 224.2127583649 2.9718e-05 deg
peri 201.4552187597593 8.1286e-05 deg
M 42.02659120709924 7.3327e-05 deg
tp 2457373.857656473224
(2015-Dec-17.35765647)
0.00039596 JED
period 1941.419499563331
5.32
2.6834e-05
7.347e-08
d
yr
n .1854313300556485 2.563e-09 deg/d
Q 3.177197084632664 2.9277e-08 au
  Orbit Determination Parameters
   # obs. used (total)      998  
   data-arc span      6398 days (17.52 yr)  
   first obs. used      1998-08-24  
   last obs. used      2016-02-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51642  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Mar-24 17:29:08  

Additional Information
 Earth MOID = 1.92725 au 
 Jupiter MOID = 2.04198 au 
 T_jup = 3.210 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.3 mag n/a MPO359000  

40769 (1999 TJ18)          Discovered 1999-Oct-10 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 TJ18 = 1998 QH66 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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