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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04360017569734345 8.5032e-08  
a 3.047028394937624 4.2493e-08 AU
q 2.914177421563549 2.8419e-07 AU
i 10.80334463403591 7.8114e-06 deg
node 224.2156840326662 4.1546e-05 deg
peri 201.1100948142607 0.00012531 deg
M 291.1309061727583 0.00012466 deg
tp 2457372.150778449141
(2015-Dec-15.65077845)
0.00067689 JED
period 1942.733275644864
5.32
4.0639e-05
1.113e-07
d
yr
n .1853059318606168 3.8763e-09 deg/d
Q 3.179879368311698 4.4345e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      749  
   data-arc span      5893 days (16.13 yr)  
   first obs. used      1998-08-24  
   last obs. used      2014-10-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52956  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 14:17:06  

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 (327)
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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