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70450 (1999 TL18)
Classification: Main-belt Asteroid          SPK-ID: 2070450
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1374050563427431 4.8965e-08  
a 2.349100679804345 8.7397e-09 au
q 2.026322368541053 1.1536e-07 au
i 7.582373712347905 4.9929e-06 deg
node 47.3794279343627 2.8845e-05 deg
peri 306.2529406135643 3.2129e-05 deg
M 286.2270915154228 1.4757e-05 deg
tp 2459269.991627828968
(2021-Feb-24.49162783)
5.4195e-05 TDB
period 1315.076062626849
3.60
7.339e-06
2.009e-08
d
yr
n .2737484243161603 1.5277e-09 deg/d
Q 2.671878991067637 9.9406e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1228  
   data-arc span      7942 days (21.74 yr)  
   first obs. used      1998-04-21  
   last obs. used      2020-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53568  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 16:10:45  

Additional Information
 Earth MOID = 1.03293 au 
 Jupiter MOID = 2.78192 au 
 T_jup = 3.534 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.0   n/a MPO436274  

70450 (1999 TL18)          Discovered 1999-Oct-13 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 TL18 = 1998 HW96 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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