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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .220620428838244 1.683e-07  
a 2.592326601107295 4.3145e-08 au
q 2.020406394682216 4.6569e-07 au
i 4.2411261401805 1.0158e-05 deg
node 16.57307354766188 0.00011144 deg
peri 300.5669644079379 0.00011332 deg
M 52.38618345333187 2.3621e-05 deg
tp 2457378.656218175707
(2015-Dec-22.15621818)
9.6614e-05 JED
period 1524.519562069111
4.17
3.8059e-05
1.042e-07
d
yr
n .2361399676048763 5.8952e-09 deg/d
Q 3.164246807532373 5.2663e-08 au
  Orbit Determination Parameters
   # obs. used (total)      394  
   data-arc span      6715 days (18.38 yr)  
   first obs. used      1997-02-01  
   last obs. used      2015-06-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56522  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 13:48:09  

Additional Information
 Earth MOID = 1.01069 au 
 Jupiter MOID = 2.14889 au 
 T_jup = 3.380 
[ 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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