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11263 Pesonen (1979 OA)
Classification: Main-belt Asteroid          SPK-ID: 2011263
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3802684073304343 3.9519e-08  
a 2.900424074269509 1.5132e-08 au
q 1.797484430964193 1.1266e-07 au
i 25.20348920219292 4.3471e-06 deg
node 297.6710083622874 1.5723e-05 deg
peri 341.8892503022864 2.0726e-05 deg
M 143.4490557307199 1.6242e-05 deg
tp 2458481.571216356209
(2018-Dec-29.07121636)		 7.9048e-05 TDB
period 1804.22492705429
4.94		 1.4119e-05
3.866e-08		 d
yr
n .1995316629328265 1.5615e-09 deg/d
Q 4.003363717574825 2.0886e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1410  
   data-arc span      15123 days (41.40 yr)  
   first obs. used      1979-07-23  
   last obs. used      2020-12-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45764  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 22:38:44  

Additional Information
 Earth MOID = .790556 au 
 Jupiter MOID = 1.28245 au 
 T_jup = 3.044 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457568.5 (2016-Jun-29.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3804142192144742 3.9415e-08  
q 1.795800371141151 1.1232e-07 au
tp 2456679.699079420050
(2014-Jan-22.19907942)		 7.4982e-05 TDB
node 297.6970293516364 1.5732e-05 deg
peri 341.8855441740345 2.0748e-05 deg
i 25.2007708838889 4.3472e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      1410  
   data-arc span      15123 days (41.40 yr)  
   first obs. used      1979-07-23  
   last obs. used      2020-12-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45764  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 22:38:44  

Additional Information
 Jupiter MOID = 1.28245 au 
 T_jup = 3.044 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.553571683678528E-15 -4.412882074718622E-15 1.516711322714702E-12 -1.041919161624326E-14 2.349661708962151E-13 -1.245202694668715E-14
q -4.412882074718622E-15 1.261659131171527E-14 -4.253632647283604E-12 3.228408553255202E-14 -6.478540009645042E-13 3.506041505286317E-14
tp 1.516711322714702E-12 -4.253632647283604E-12 5.622272670816348E-9 -5.421439195895273E-11 1.095028095746101E-9 -5.716400789100326E-11
node -1.041919161624326E-14 3.228408553255202E-14 -5.421439195895273E-11 2.475036615962735E-10 -2.333202907184555E-10 2.524722432999879E-11
peri 2.349661708962151E-13 -6.478540009645042E-13 1.095028095746101E-9 -2.333202907184555E-10 4.304699702035543E-10 -3.356625112960183E-11
i -1.245202694668715E-14 3.506041505286317E-14 -5.716400789100326E-11 2.524722432999879E-11 -3.356625112960183E-11 1.889846224743895E-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 13.8   n/a MPO449023  
diameter diameter 10.079 km 1.924 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
geometric albedo albedo 0.026   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

11263 Pesonen           Discovered 1979 July 23 by E. Bowell at the Anderson Mesa Station of the Lowell Observatory.
Lauri Pesonen (b. 1944) is an emeritus Professor of geophysics at the University of Helsinki. An expert in supercontinents, he also studied terrestrial impact craters. He introduced planetary geophysics at the University and raised public awareness in Finland about asteroid impacts.
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 2014-07-12Last Updated: 2014-08-13

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Alternate Designations
 1979 OA = 1969 OY = 2001 YS82 
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