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268309 (2005 QR136)
Classification: Main-belt Asteroid          SPK-ID: 2268309
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1306663196293091 5.9299e-08  
a 2.460998182782488 1.9373e-08 au
q 2.139428607623882 1.3862e-07 au
i 3.155297830451425 4.8718e-06 deg
node 124.0212328140111 0.00010484 deg
peri 16.58046907516535 0.00010822 deg
M 158.45612617171 3.0253e-05 deg
tp 2458379.814070993847
(2018-Sep-18.31407099)
0.00011331 TDB
period 1410.150177469808
3.86
1.6651e-05
4.559e-08
d
yr
n .2552919580848741 3.0145e-09 deg/d
Q 2.782567757941093 2.1905e-08 au
  Orbit Determination Parameters
   # obs. used (total)      280  
   data-arc span      6458 days (17.68 yr)  
   first obs. used      2003-01-09  
   last obs. used      2020-09-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6731  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:13:46  

Additional Information
 Earth MOID = 1.15272 au 
 Jupiter MOID = 2.23178 au 
 T_jup = 3.476 
[ 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 17.1   n/a MPO470847  

268309 (2005 QR136)          Discovered 2005-Aug-28 by Spacewatch at Kitt Peak
Reference: 20110319/Numbers.arcLast Updated: 2011-03-23

Alternate Designations
 2005 QR136 = 2006 WE178 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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