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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 ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2204145753571746 1.7228e-07  
a 2.591722112348557 4.4673e-08 AU
q 2.020468783511451 4.7309e-07 AU
i 4.241247295245073 1.401e-05 deg
node 16.57703179488965 0.00014028 deg
peri 300.6237319436063 0.00014143 deg
M 270.629660925112 2.4612e-05 deg
tp 2457378.831047558901
(2015-Dec-22.33104756)
0.00011021 JED
period 1523.986353090547
4.17
3.9403e-05
1.079e-07
d
yr
n .2362225877350823 6.1076e-09 deg/d
Q 3.162975441185664 5.4519e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      364  
   data-arc span      6623 days (18.13 yr)  
   first obs. used      1997-02-01  
   last obs. used      2015-03-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57826  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 18:56:25  

Additional Information
 Earth MOID = 1.01215 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
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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