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120387 (2005 QL38)
Classification: Main-belt Asteroid          SPK-ID: 2120387
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2061719561809565 3.2329e-08  
a 2.375597300789353 9.5897e-09 au
q 1.885815758187412 8.0258e-08 au
i 1.831709765705531 5.8148e-06 deg
node 194.8525588185375 0.00010852 deg
peri 89.07429757256376 0.00010956 deg
M 59.40488002099158 1.4458e-05 deg
tp 2458779.812729175951
(2019-Oct-23.31272918)
5.3303e-05 TDB
period 1337.388737568086
3.66
8.098e-06
2.217e-08
d
yr
n .2691812708507069 1.6299e-09 deg/d
Q 2.865378843391294 1.1567e-08 au
  Orbit Determination Parameters
   # obs. used (total)      558  
   data-arc span      8043 days (22.02 yr)  
   first obs. used      1998-10-18  
   last obs. used      2020-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58832  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:57:33  

Additional Information
 Earth MOID = .870482 au 
 Jupiter MOID = 2.29176 au 
 T_jup = 3.512 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457015.5 (2014-Dec-24.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2055802086948318 3.2329e-08  
q 1.88844010285207 8.0179e-08 au
tp 2457442.250958745435
(2016-Feb-23.75095875)
5.189e-05 TDB
node 194.890373074883 0.00010858 deg
peri 89.05711450240263 0.00010963 deg
i 1.830379574558368 5.8133e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      558  
   data-arc span      8043 days (22.02 yr)  
   first obs. used      1998-10-18  
   last obs. used      2020-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58832  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:57:33  

Additional Information
 Jupiter MOID = 2.29176 au 
 T_jup = 3.512 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.04513516337446E-15 -2.582324598571733E-15 -2.570961953515567E-13 3.960951991976633E-15 -6.602658309347709E-14 -6.508117103585811E-16
q -2.582324598571733E-15 6.428723933799008E-15 6.650061851124716E-13 -1.108329927107853E-14 1.679155905643704E-13 1.6788928856765E-15
tp -2.570961953515567E-13 6.650061851124716E-13 2.692598853815636E-9 -1.191383351098764E-11 7.929997211116659E-10 1.328300179695835E-12
node 3.960951991976633E-15 -1.108329927107853E-14 -1.191383351098764E-11 1.178938981762293E-8 -1.178599338277193E-8 5.964869378824015E-11
peri -6.602658309347709E-14 1.679155905643704E-13 7.929997211116659E-10 -1.178599338277193E-8 1.201902659065223E-8 -5.923920012668403E-11
i -6.508117103585811E-16 1.6788928856765E-15 1.328300179695835E-12 5.964869378824015E-11 -5.923920012668403E-11 3.379408912694179E-11

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 16.5   n/a MPO245018  

120387 (2005 QL38)          Discovered 2005-Aug-25 by NEAT at Palomar
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ show close-approach data ]
Alternate Designations
 2005 QL38 = 2004 FO160 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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