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308369 (2005 QJ178)
Classification: Main-belt Asteroid          SPK-ID: 2308369
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1261571420426987 6.1123e-08  
a 2.989017172728483 3.4131e-08 au
q 2.61193130870051 1.9514e-07 au
i 10.05768273571632 6.2553e-06 deg
node 21.44074073214725 3.4745e-05 deg
peri 284.9794684988689 4.2285e-05 deg
M 341.8433247710169 2.3404e-05 deg
tp 2459095.697351667243
(2020-Sep-03.19735167)
0.00012268 TDB
period 1887.517740335041
5.17
3.233e-05
8.851e-08
d
yr
n .1907266842091237 3.2668e-09 deg/d
Q 3.366103036756456 3.8437e-08 au
  Orbit Determination Parameters
   # obs. used (total)      242  
   data-arc span      9986 days (27.34 yr)  
   first obs. used      1993-03-19  
   last obs. used      2020-07-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5944  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 19:57:09  

Additional Information
 Earth MOID = 1.62065 au 
 Jupiter MOID = 1.97984 au 
 T_jup = 3.221 
[ show covariance matrix ]

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 15.5   n/a MPO494637  

308369 (2005 QJ178)          Discovered 2005-Aug-26 by NEAT at Palomar
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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