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226717 (2004 PK22)
Classification: Main-belt Asteroid          SPK-ID: 2226717
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1822609894713532 6.4356e-08  
a 2.749997186841625 2.2998e-08 au
q 2.248779978524433 1.7127e-07 au
i 10.95313520625135 6.9505e-06 deg
node 136.7602965262327 3.0875e-05 deg
peri 178.9340785138646 3.5523e-05 deg
M 82.88300692525972 1.8033e-05 deg
tp 2458217.004917906508
(2018-Apr-08.50491791)
8.1275e-05 TDB
period 1665.700059339693
4.56
2.0896e-05
5.721e-08
d
yr
n .2161253450052161 2.7112e-09 deg/d
Q 3.251214395158818 2.719e-08 au
  Orbit Determination Parameters
   # obs. used (total)      228  
   data-arc span      8903 days (24.38 yr)  
   first obs. used      1995-07-22  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61895  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 15:36:44  

Additional Information
 Earth MOID = 1.23435 au 
 Jupiter MOID = 2.05827 au 
 T_jup = 3.296 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456987.5 (2014-Nov-26.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1848083428497115 6.4863e-08  
q 2.239511407648872 1.7312e-07 au
tp 2456549.106341311880
(2013-Sep-13.60634131)
7.2486e-05 TDB
node 136.8650377340163 3.0789e-05 deg
peri 178.2870241703882 3.5271e-05 deg
i 10.97259865725895 6.9635e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      228  
   data-arc span      8903 days (24.38 yr)  
   first obs. used      1995-07-22  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61895  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 15:36:44  

Additional Information
 Jupiter MOID = 2.05827 au 
 T_jup = 3.296 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.2071511044583E-15 -1.117166272631486E-14 1.248503363653489E-12 -2.002864824780596E-14 4.358351316466229E-13 -4.685987980096342E-15
q -1.117166272631486E-14 2.997054097889789E-14 -3.179926570318452E-12 5.574767104686928E-14 -1.11165072335814E-12 1.373532865282328E-14
tp 1.248503363653489E-12 -3.179926570318452E-12 5.2541774142482E-9 1.280637120386525E-11 1.269130714531863E-9 7.837304413400024E-12
node -2.002864824780596E-14 5.574767104686928E-14 1.280637120386525E-11 9.479360873069631E-10 -9.273807658788216E-10 3.687671220053765E-11
peri 4.358351316466229E-13 -1.11165072335814E-12 1.269130714531863E-9 -9.273807658788216E-10 1.244057332609902E-9 -3.439422621467983E-11
i -4.685987980096342E-15 1.373532865282328E-14 7.837304413400024E-12 3.687671220053765E-11 -3.439422621467983E-11 4.849046271919299E-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 16.1   n/a MPO459997  

226717 (2004 PK22)          Discovered 2004-Aug-08 by LINEAR at Socorro
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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