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227156 (2005 QY8)
Classification: Main-belt Asteroid          SPK-ID: 2227156
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2198173479285485 4.2332e-08  
a 2.377048433477252 9.6329e-09 au
q 1.854531950932572 9.873e-08 au
i 2.700687684305899 4.1229e-06 deg
node 142.6827019465036 0.00011049 deg
peri 189.8108845776383 0.00011123 deg
M 69.01023067047154 1.3831e-05 deg
tp 2458943.894210093347
(2020-Apr-04.39421009)
5.0576e-05 TDB
period 1338.614339770961
3.66
8.137e-06
2.228e-08
d
yr
n .2689348151324873 1.6348e-09 deg/d
Q 2.899564916021932 1.175e-08 au
  Orbit Determination Parameters
   # obs. used (total)      345  
   data-arc span      8067 days (22.09 yr)  
   first obs. used      1998-12-11  
   last obs. used      2021-01-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .62888  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:38:39  

Additional Information
 Earth MOID = .84226 au 
 Jupiter MOID = 2.4699 au 
 T_jup = 3.506 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457858.5 (2017-Apr-15.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2202620345639106 4.2307e-08  
q 1.8533558923685 9.8731e-08 au
tp 2457606.235031815573
(2016-Aug-05.73503182)
4.6746e-05 TDB
node 142.7177163407976 0.00011056 deg
peri 189.9797517042614 0.0001113 deg
i 2.70010587566642 4.1222e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      345  
   data-arc span      8067 days (22.09 yr)  
   first obs. used      1998-12-11  
   last obs. used      2021-01-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .62888  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:38:39  

Additional Information
 Jupiter MOID = 2.4699 au 
 T_jup = 3.506 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.789859028322758E-15 -4.165890479775363E-15 8.407356898344299E-13 -1.174735121879615E-14 1.926297894430923E-13 -2.939336833671105E-16
q -4.165890479775363E-15 9.747742084070416E-15 -1.860711948400966E-12 2.686525435532538E-14 -4.208136633503867E-13 6.497615187413642E-16
tp 8.407356898344299E-13 -1.860711948400966E-12 2.185233720136326E-9 -3.352547833199709E-11 6.263858454135033E-10 -1.388172170589549E-12
node -1.174735121879615E-14 2.686525435532538E-14 -3.352547833199709E-11 1.222328687511981E-8 -1.221832140202547E-8 6.598190812602175E-11
peri 1.926297894430923E-13 -4.208136633503867E-13 6.263858454135033E-10 -1.221832140202547E-8 1.238665965348753E-8 -6.631471647929672E-11
i -2.939336833671105E-16 6.497615187413642E-16 -1.388172170589549E-12 6.598190812602175E-11 -6.631471647929672E-11 1.699222146831776E-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 17.40   n/a MPCxxxxx  

227156 (2005 QY8)          Discovered 2005-Aug-25 by NEAT at Palomar
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ show close-approach data ]
Alternate Designations
 2005 QY8 = 2005 ML1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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