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70451 (1999 TQ18)
Classification: Main-belt Asteroid          SPK-ID: 2070451
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2202232390162211 1.8308e-07  
a 2.592030913571365 4.9002e-08 AU
q 2.021205470154504 5.0101e-07 AU
i 4.240835562373885 1.6455e-05 deg
node 16.5789933800776 0.00015659 deg
peri 300.606704164819 0.0001578 deg
M 223.3893493886176 2.8229e-05 deg
tp 2457378.916603561037
(2015-Dec-22.41660356)
0.00012962 JED
period 1524.258733488703
4.17
4.3224e-05
1.183e-07
d
yr
n .2361803754773554 6.6975e-09 deg/d
Q 3.162856356988225 5.9794e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      355  
   data-arc span      6274 days (17.18 yr)  
   first obs. used      1997-02-01  
   last obs. used      2014-04-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58827  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 15:18:18  

Additional Information
 Earth MOID = 1.011 AU 
 T_jup = 3.381 
[ 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 15.4 mag n/a MPO247866  

70451 (1999 TQ18)          Discovered 1999-Oct-14 by BAO Schmidt CCD Asteroid Program at Xinglong (327)
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

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