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227216 (2005 QA179)
Classification: Main-belt Asteroid          SPK-ID: 2227216
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1312054798124592 5.1956e-08  
a 2.37611671482177 1.2268e-08 au
q 2.064357181163175 1.2264e-07 au
i 3.209187617978168 3.9904e-06 deg
node 336.1699977325099 9.189e-05 deg
peri 69.04597626976894 9.4097e-05 deg
M 11.89760001906377 1.6777e-05 deg
tp 2459156.286291399131
(2020-Nov-02.78629140)
6.2482e-05 TDB
period 1337.827382901508
3.66
1.0361e-05
2.837e-08
d
yr
n .2690930119992195 2.0841e-09 deg/d
Q 2.687876248480364 1.3878e-08 au
  Orbit Determination Parameters
   # obs. used (total)      370  
   data-arc span      6594 days (18.05 yr)  
   first obs. used      2003-01-13  
   last obs. used      2021-02-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49867  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:38:53  

Additional Information
 Earth MOID = 1.07508 au 
 Jupiter MOID = 2.67947 au 
 T_jup = 3.528 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458029.5 (2017-Oct-03.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1322942107109136 5.2389e-08  
q 2.061535012403707 1.238e-07 au
tp 2457815.810659250819
(2017-Mar-03.31065925)
6.5859e-05 TDB
node 336.3167807060661 9.1928e-05 deg
peri 68.30848742287941 9.4054e-05 deg
i 3.20880651946077 3.9932e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      370  
   data-arc span      6594 days (18.05 yr)  
   first obs. used      2003-01-13  
   last obs. used      2021-02-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49867  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:38:53  

Additional Information
 Jupiter MOID = 2.67947 au 
 T_jup = 3.528 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.744590001510088E-15 -6.46214245345691E-15 -9.225800126880514E-13 -1.128080485327874E-15 -3.160236883275442E-13 -4.646703455925121E-15
q -6.46214245345691E-15 1.532522585071354E-14 1.838983107740985E-12 5.702525018492302E-15 6.462546980319275E-13 1.123549248411686E-14
tp -9.225800126880514E-13 1.838983107740985E-12 4.337454485236741E-9 -9.472357791241252E-12 1.3376211922482E-9 5.239302492144446E-13
node -1.128080485327874E-15 5.702525018492302E-15 -9.472357791241252E-12 8.45068968568252E-9 -8.439848958333273E-9 1.168107897335918E-10
peri -3.160236883275442E-13 6.462546980319275E-13 1.3376211922482E-9 -8.439848958333273E-9 8.846229523367648E-9 -1.164306127721636E-10
i -4.646703455925121E-15 1.123549248411686E-14 5.239302492144446E-13 1.168107897335918E-10 -1.164306127721636E-10 1.594586290864088E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.09   n/a E2021B55  

227216 (2005 QA179)          Discovered 2005-Aug-24 by NEAT at Palomar
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

Alternate Designations
 2005 QA179 = 2007 BW73 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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