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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2658757946202153 4.8534e-08  
a 2.615583524904673 1.2301e-08 au
q 1.920163176825099 1.2687e-07 au
i 13.02446939344297 4.6179e-06 deg
node 87.62447856736412 2.1988e-05 deg
peri 257.308473435888 2.3448e-05 deg
M 56.88360768766629 8.2671e-06 deg
tp 2458356.361681879151
(2018-Aug-25.86168188)
3.5155e-05 TDB
period 1545.081229834902
4.23
1.0899e-05
2.984e-08
d
yr
n .2329974586763102 1.6436e-09 deg/d
Q 3.311003872984246 1.5571e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1085  
   data-arc span      9489 days (25.98 yr)  
   first obs. used      1993-12-14  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44054  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 15:10:33  

Additional Information
 Earth MOID = .960506 au 
 Jupiter MOID = 2.24577 au 
 T_jup = 3.321 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457084.5 (2015-Mar-03.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2674681869749239 4.8972e-08  
q 1.914671468246684 1.2821e-07 au
tp 2456808.230902275992
(2014-May-30.73090228)
3.4105e-05 TDB
node 87.91817522479158 2.2004e-05 deg
peri 256.4574445310692 2.3408e-05 deg
i 13.02617949922219 4.6163e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1085  
   data-arc span      9489 days (25.98 yr)  
   first obs. used      1993-12-14  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44054  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 15:10:33  

Additional Information
 Jupiter MOID = 2.24577 au 
 T_jup = 3.321 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.39823082288329E-15 -6.263370636964461E-15 3.774844437937247E-13 7.36431504892721E-15 -5.503388465509081E-15 -9.901099979821799E-15
q -6.263370636964461E-15 1.643724741619254E-14 -1.021937664900323E-12 -1.913823144189877E-14 7.866229304448656E-15 2.681198243523494E-14
tp 3.774844437937247E-13 -1.021937664900323E-12 1.163141431379029E-9 -1.368694462902725E-12 2.904743251329832E-10 -2.501441259797135E-12
node 7.36431504892721E-15 -1.913823144189877E-14 -1.368694462902725E-12 4.841941631553772E-10 -4.720895914586591E-10 -8.769408822969253E-12
peri -5.503388465509081E-15 7.866229304448656E-15 2.904743251329832E-10 -4.720895914586591E-10 5.479303744192999E-10 8.219247900049386E-12
i -9.901099979821799E-15 2.681198243523494E-14 -2.501441259797135E-12 -8.769408822969253E-12 8.219247900049386E-12 2.130977335679401E-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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