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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04329572356722708 7.0129e-08  
a 3.04588288877858 2.8717e-08 au
q 2.914009185207876 2.239e-07 au
i 10.80553012401143 7.3093e-06 deg
node 224.2120482996577 3.0617e-05 deg
peri 201.3846041782973 8.2919e-05 deg
M 5.00350487261575 7.5115e-05 deg
tp 2457373.513904381556
(2015-Dec-17.01390438)
0.00040518 JED
period 1941.637845864836
5.32
2.7459e-05
7.518e-08
d
yr
n .1854104774310527 2.6221e-09 deg/d
Q 3.177756592349285 2.996e-08 au
  Orbit Determination Parameters
   # obs. used (total)      974  
   data-arc span      6324 days (17.31 yr)  
   first obs. used      1998-08-24  
   last obs. used      2015-12-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51786  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 14:41:37  

Additional Information
 Earth MOID = 1.92769 au 
 Jupiter MOID = 2.04163 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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