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70451 (1999 TQ18)
Classification: Main-belt Asteroid          SPK-ID: 2070451
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2203871212092678 4.1216e-08  
a 2.59193696055793 1.3494e-08 au
q 2.020707435464668 1.1196e-07 au
i 4.238937504368022 5.3788e-06 deg
node 16.52463087177545 6.1965e-05 deg
peri 300.2806973256253 6.3855e-05 deg
M 23.37612527218047 1.6818e-05 deg
tp 2458901.529650455448
(2020-Feb-22.02965046)
7.0687e-05 TDB
period 1524.175859822271
4.17
1.1903e-05
3.259e-08
d
yr
n .2361932172590493 1.8445e-09 deg/d
Q 3.163166485651191 1.6468e-08 au
  Orbit Determination Parameters
   # obs. used (total)      636  
   data-arc span      8578 days (23.49 yr)  
   first obs. used      1997-02-01  
   last obs. used      2020-07-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57489  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 06:27:34  

Additional Information
 Earth MOID = 1.0115 au 
 Jupiter MOID = 2.15916 au 
 T_jup = 3.381 
[ 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 15.4   n/a MPO436274  

70451 (1999 TQ18)          Discovered 1999-Oct-14 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 TQ18 = 1998 HL72 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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