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11463 Petrpokorny (1981 EN24)
Classification: Main-belt Asteroid          SPK-ID: 2011463
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1138957899568807 2.9499e-08  
a 2.251124623669402 6.9299e-09 au
q 1.99473100636519 6.5676e-08 au
i 1.78443361606083 3.4283e-06 deg
node 254.4938974079776 0.00014938 deg
peri 198.3595122696498 0.00015098 deg
M 289.8970461127394 2.2211e-05 deg
tp 2459240.732384365068
(2021-Jan-26.23238437)
7.6409e-05 TDB
period 1233.666394578855
3.38
5.6966e-06
1.56e-08
d
yr
n .2918130878671585 1.3475e-09 deg/d
Q 2.507518240973615 7.7192e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1336  
   data-arc span      13629 days (37.31 yr)  
   first obs. used      1981-02-12  
   last obs. used      2018-06-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56932  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 19:12:18  

Additional Information
 Earth MOID = 1.0115 au 
 Jupiter MOID = 2.63733 au 
 T_jup = 3.618 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456337.5 (2013-Feb-14.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1134454267203284 2.9451e-08  
q 1.996124942155414 6.5512e-08 au
tp 2456771.206484517705
(2014-Apr-23.70648452)
7.4425e-05 TDB
node 254.5650492253399 0.00014939 deg
peri 197.9588062233856 0.000151 deg
i 1.78382527820347 3.4297e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1336  
   data-arc span      13629 days (37.31 yr)  
   first obs. used      1981-02-12  
   last obs. used      2018-06-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56932  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 19:12:18  

Additional Information
 Jupiter MOID = 2.63733 au 
 T_jup = 3.618 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.673653109442389E-16 -1.921082824157475E-15 1.53508124954337E-13 3.31988840423396E-15 3.359102030857672E-14 -3.385646868054511E-17
q -1.921082824157475E-15 4.291820134672742E-15 -2.851485737474158E-13 -6.387099829226878E-15 -6.348062216956444E-14 9.755832975732825E-17
tp 1.53508124954337E-13 -2.851485737474158E-13 5.539036778935881E-9 1.023264118778819E-11 1.661498479050924E-9 -5.542014643781549E-13
node 3.31988840423396E-15 -6.387099829226878E-15 1.023264118778819E-11 2.231712617119583E-8 -2.230289121016117E-8 -8.681412214954029E-11
peri 3.359102030857672E-14 -6.348062216956444E-14 1.661498479050924E-9 -2.230289121016117E-8 2.280181129547726E-8 8.660701758606224E-11
i -3.385646868054511E-17 9.755832975732825E-17 -5.542014643781549E-13 -8.681412214954029E-11 8.660701758606224E-11 1.176315968932649E-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 15.1   n/a MPO324415  
rotation period rot_per 5.319 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

11463 Petrpokorny           Discovered 1981 Mar. 2 by S. J. Bus at Siding Spring.
Petr Pokorny (b. 1986) is a Czech astrophysicist specializing in numerical models of the solar system dust complex and observational interpretation of meteor radar measurements.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2017-03-12Last Updated: 2017-04-19

[ show close-approach data ]
Alternate Designations
 1981 EN24 = 1991 CD3 = 1998 FA66 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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