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172173 (2002 PW24)
Classification: Main-belt Asteroid          SPK-ID: 2172173
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08288426816132945 4.299e-08  
a 2.401317173246563 1.6204e-08 au
q 2.202285756718789 1.0442e-07 au
i 3.51772177326834 4.7662e-06 deg
node 248.2091224574608 0.00011858 deg
peri 353.4253594837639 0.00012622 deg
M 349.2730250322742 4.4657e-05 deg
tp 2459040.999296885699
(2020-Jul-10.49929689)
0.00016868 TDB
period 1359.16667305719
3.72
1.3757e-05
3.766e-08
d
yr
n .2648681777859132 2.681e-09 deg/d
Q 2.600348589774336 1.7547e-08 au
  Orbit Determination Parameters
   # obs. used (total)      235  
   data-arc span      7381 days (20.21 yr)  
   first obs. used      1999-11-15  
   last obs. used      2020-01-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64977  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 16:44:44  

Additional Information
 Earth MOID = 1.18945 au 
 Jupiter MOID = 2.40194 au 
 T_jup = 3.518 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456720.5 (2014-Mar-04.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08366122521703763 4.2917e-08  
q 2.200328798522523 1.0434e-07 au
tp 2456321.713773640847
(2013-Jan-29.21377364)
0.00016376 TDB
node 248.303889757644 0.0001186 deg
peri 353.1911520779038 0.00012611 deg
i 3.517459039366049 4.7664e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      235  
   data-arc span      7381 days (20.21 yr)  
   first obs. used      1999-11-15  
   last obs. used      2020-01-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64977  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 16:44:44  

Additional Information
 Jupiter MOID = 2.40194 au 
 T_jup = 3.518 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.841862983230431E-15 -4.431901263521467E-15 -7.893073897187014E-13 -2.033737567721334E-15 -1.860535906613633E-13 -1.371458440079249E-15
q -4.431901263521467E-15 1.088691911527166E-14 1.983128098700858E-12 8.055576150175666E-15 4.792375266068814E-13 3.542326934273373E-15
tp -7.893073897187014E-13 1.983128098700858E-12 2.681661921558646E-8 1.269893481883852E-10 7.090762467997091E-9 4.504841908667328E-12
node -2.033737567721334E-15 8.055576150175666E-15 1.269893481883852E-10 1.406521539887625E-8 -1.400376850243015E-8 6.279844763330659E-12
peri -1.860535906613633E-13 4.792375266068814E-13 7.090762467997091E-9 -1.400376850243015E-8 1.590263628693921E-8 -5.01637383371249E-12
i -1.371458440079249E-15 3.542326934273373E-15 4.504841908667328E-12 6.279844763330659E-12 -5.01637383371249E-12 2.271819419117121E-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 16.8   n/a MPO422656  

172173 (2002 PW24)          Discovered 2002-Aug-06 by NEAT at Palomar
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

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