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227154 (2005 QQ1)
Classification: Main-belt Asteroid          SPK-ID: 2227154
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2206844591956821 4.4481e-08  
a 2.372901531748764 1.2474e-08 au
q 1.849239040490183 1.0343e-07 au
i 1.888835163990594 7.2743e-06 deg
node 201.0936949465168 0.00014613 deg
peri 101.5432156166383 0.00014782 deg
M 83.89832424679524 2.0601e-05 deg
tp 2458889.350729139386
(2020-Feb-09.85072914)
7.4856e-05 TDB
period 1335.112930030895
3.66
1.0528e-05
2.882e-08
d
yr
n .2696401120103521 2.1263e-09 deg/d
Q 2.896564023007346 1.5227e-08 au
  Orbit Determination Parameters
   # obs. used (total)      166  
   data-arc span      8110 days (22.20 yr)  
   first obs. used      1998-09-25  
   last obs. used      2020-12-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56386  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:38:39  

Additional Information
 Earth MOID = .833065 au 
 Jupiter MOID = 2.3455 au 
 T_jup = 3.509 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457540.5 (2016-Jun-01.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2203811293139908 4.4462e-08  
q 1.850200744584079 1.0341e-07 au
tp 2457554.709733920571
(2016-Jun-15.20973392)
6.9202e-05 TDB
node 201.1149001665419 0.00014608 deg
peri 101.700093696137 0.00014778 deg
i 1.88884943421059 7.2756e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      166  
   data-arc span      8110 days (22.20 yr)  
   first obs. used      1998-09-25  
   last obs. used      2020-12-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56386  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:38:39  

Additional Information
 Jupiter MOID = 2.3455 au 
 T_jup = 3.509 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.97686763901708E-15 -4.579094727097598E-15 9.524595324525779E-13 -2.061486771745374E-14 2.880432810252418E-13 -3.719279549195178E-15
q -4.579094727097598E-15 1.069411870701436E-14 -1.920347243005851E-12 4.599578056068273E-14 -5.824497531646219E-13 8.628479967475002E-15
tp 9.524595324525779E-13 -1.920347243005851E-12 4.788885910132008E-9 -5.549631736895956E-11 1.55691092700637E-9 -4.374417097792189E-12
node -2.061486771745374E-14 4.599578056068273E-14 -5.549631736895956E-11 2.134012271999934E-8 -2.13444164521573E-8 -5.767020205857241E-11
peri 2.880432810252418E-13 -5.824497531646219E-13 1.55691092700637E-9 -2.13444164521573E-8 2.183768287587349E-8 5.640332642573968E-11
i -3.719279549195178E-15 8.628479967475002E-15 -4.374417097792189E-12 -5.767020205857241E-11 5.640332642573968E-11 5.293480312810598E-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 17.77   n/a MPCxxxxx  

227154 (2005 QQ1)          Discovered 2005-Aug-22 by NEAT at Palomar
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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