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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0436001857558152 8.4216e-08  
a 3.047028397540528 4.1596e-08 AU
q 2.914177393404517 2.8153e-07 AU
i 10.80334415709408 7.6513e-06 deg
node 224.2156905822999 4.1056e-05 deg
peri 201.1100900914494 0.00012331 deg
M 291.1309034176845 0.00012226 deg
tp 2457372.150793793066
(2015-Dec-15.65079379)
0.00066372 JED
period 1942.733278134215
5.32
3.9781e-05
1.089e-07
d
yr
n .1853059316231722 3.7945e-09 deg/d
Q 3.179879401676539 4.3409e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      787  
   data-arc span      6204 days (16.99 yr)  
   first obs. used      1998-08-24  
   last obs. used      2015-08-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5303  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 15:37:24  

Additional Information
 Earth MOID = 1.92843 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 13.2 mag n/a MPO266148  

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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