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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04367617592613378 9.3966e-08  
a 3.047464782755477 4.7865e-08 AU
q 2.914363174775152 3.0162e-07 AU
i 10.80281720337148 1.0352e-05 deg
node 224.2235171193183 4.2246e-05 deg
peri 200.9224684580902 0.00012663 deg
M 254.2625534331909 0.00012647 deg
tp 2457371.232741789765
(2015-Dec-14.73274179)
0.00069007 JED
period 1943.150640719276
5.32
4.578e-05
1.253e-07
d
yr
n .1852661304049708 4.3648e-09 deg/d
Q 3.180566390735803 4.9956e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      695  
   data-arc span      5789 days (15.85 yr)  
   first obs. used      1998-08-24  
   last obs. used      2014-06-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53606  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 13:21:45  

Additional Information
 Earth MOID = 1.92783 AU 
 T_jup = 3.209 
[ 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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