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120378 (2005 QL9)
Classification: Main-belt Asteroid          SPK-ID: 2120378
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1937627194401587 5.167e-08  
a 2.663321413372884 1.4707e-08 au
q 2.147269013574547 1.374e-07 au
i 6.442293161076694 5.6944e-06 deg
node 12.49326530183233 3.9244e-05 deg
peri 326.9773391616351 4.1023e-05 deg
M 147.5463547525656 1.2379e-05 deg
tp 2458349.831500739380
(2018-Aug-19.33150074)
5.2965e-05 TDB
period 1587.57334348682
4.35
1.315e-05
3.6e-08
d
yr
n .226761177035969 1.8783e-09 deg/d
Q 3.179373813171221 1.7557e-08 au
  Orbit Determination Parameters
   # obs. used (total)      367  
   data-arc span      9077 days (24.85 yr)  
   first obs. used      1995-03-29  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59605  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 06:18:49  

Additional Information
 Earth MOID = 1.14237 au 
 Jupiter MOID = 2.23169 au 
 T_jup = 3.349 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.3   n/a MPO453674  

120378 (2005 QL9)          Discovered 2005-Aug-25 by NEAT at Palomar
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

Alternate Designations
 2005 QL9 = 1995 FB18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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