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227187 (2005 QL57)
Classification: Main-belt Asteroid          SPK-ID: 2227187
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2072774801784724 7.4258e-08  
a 2.410002432343208 9.78e-09 au
q 1.910463200943118 1.7896e-07 au
i 1.603100205692283 3.839e-06 deg
node 251.9050967827025 0.00028789 deg
peri 69.33351558603027 0.00028828 deg
M 41.38672866038399 1.3252e-05 deg
tp 2459043.397445349513
(2020-Jul-12.89744535)
5.05e-05 TDB
period 1366.54723639253
3.74
8.3183e-06
2.277e-08
d
yr
n .2634376554376148 1.6036e-09 deg/d
Q 2.909541663743298 1.1807e-08 au
  Orbit Determination Parameters
   # obs. used (total)      298  
   data-arc span      6140 days (16.81 yr)  
   first obs. used      2004-03-15  
   last obs. used      2021-01-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52654  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:38:46  

Additional Information
 Earth MOID = .896519 au 
 Jupiter MOID = 2.41092 au 
 T_jup = 3.490 
[ 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 17.29   n/a E2021B55  

227187 (2005 QL57)          Discovered 2005-Aug-24 by NEAT at Palomar
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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