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JPL Small-Body Database Browser
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305543 (2008 QY40)
Classification: TransNeptunian Object          SPK-ID: 2305543
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4063559486684022 0.00013198  
a 62.01947863514254 0.014678 au
q 36.81749455843949 0.00089716 au
i 25.18322763233156 0.00017959 deg
node 43.15190941703241 0.00044204 deg
peri 331.5063577646135 0.010036 deg
M 356.9700105581122 0.0035207 deg
tp 2460102.013384451651
(2023-Jun-06.51338445)
1.8384 TDB
period 178398.2514690905
488.43
63.33
0.1734
d
yr
n .002017956998095208 7.1636e-07 deg/d
Q 87.22146271184559 0.020642 au
  Orbit Determination Parameters
   # obs. used (total)      88  
   data-arc span      2519 days (6.90 yr)  
   first obs. used      2008-08-25  
   last obs. used      2015-07-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      3  
   norm. resid. RMS      .32242  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-10 13:23:31  

Additional Information
 Earth MOID = 35.8399 au 
 Jupiter MOID = 31.9478 au 
 T_jup = 5.793 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 5.5   n/a MPO386269  

305543 (2008 QY40)          Discovered 2008-Aug-25 by Schwamb, M. E., Brown, M. E., Rabinowitz, D. at Palomar
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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