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215274 (2001 PH38)
Classification: Main-belt Asteroid          SPK-ID: 2215274
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .266150016478682 4.7889e-08  
a 2.61536878593998 1.2066e-08 au
q 1.919288340464224 1.2484e-07 au
i 13.02412241662753 4.408e-06 deg
node 87.62310759477025 2.0533e-05 deg
peri 257.3040822596219 2.1815e-05 deg
M 150.0650500943372 8.1753e-06 deg
tp 2458356.516280807233
(2018-Aug-26.01628081)
3.374e-05 TDB
period 1544.890957379185
4.23
1.0691e-05
2.927e-08
d
yr
n .2330261551991465 1.6126e-09 deg/d
Q 3.311449231415736 1.5277e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1180  
   data-arc span      9623 days (26.35 yr)  
   first obs. used      1993-12-14  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43069  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 09:17:09  

Additional Information
 Earth MOID = .960465 au 
 Jupiter MOID = 2.24871 au 
 T_jup = 3.321 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457300.5 (2015-Oct-05.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2672734066377229 4.8354e-08  
q 1.915835089741779 1.2625e-07 au
tp 2456808.311110668912
(2014-May-30.81111067)
3.206e-05 TDB
node 87.91174953976993 2.0548e-05 deg
peri 256.5370504893127 2.1778e-05 deg
i 13.02266618730981 4.4075e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1180  
   data-arc span      9623 days (26.35 yr)  
   first obs. used      1993-12-14  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43069  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 09:17:09  

Additional Information
 Jupiter MOID = 2.24871 au 
 T_jup = 3.321 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.338063869166588E-15 -6.089793799910476E-15 2.886354734882557E-13 -4.51601841239819E-16 -2.606939125719112E-14 -8.093518079221597E-15
q -6.089793799910476E-15 1.593785362164336E-14 -7.6553488407221E-13 2.70332908797431E-15 6.799018865009264E-14 2.178316277194257E-14
tp 2.886354734882557E-13 -7.6553488407221E-13 1.027822375285336E-9 -8.135401779906158E-13 2.464745687434352E-10 -2.047094907424921E-12
node -4.51601841239819E-16 2.70332908797431E-15 -8.135401779906158E-13 4.222141929748467E-10 -4.112262590743048E-10 1.872524168322084E-12
peri -2.606939125719112E-14 6.799018865009264E-14 2.464745687434352E-10 -4.112262590743048E-10 4.742701877023337E-10 -2.064643987927962E-12
i -8.093518079221597E-15 2.178316277194257E-14 -2.047094907424921E-12 1.872524168322084E-12 -2.064643987927962E-12 1.942635416085273E-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 15.5   n/a MPO454546  

215274 (2001 PH38)          Discovered 2001-Aug-11 by NEAT at Palomar
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

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