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11459 Andraspal (1981 ET13)
Classification: Main-belt Asteroid          SPK-ID: 2011459
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2187052654567381 3.622e-08  
a 2.28196362233653 7.1871e-09 au
q 1.782886162550799 8.2429e-08 au
i 4.195530807246967 2.8197e-06 deg
node 291.8728644417572 6.015e-05 deg
peri 295.550350903498 6.0635e-05 deg
M 158.7424016538783 7.7795e-06 deg
tp 2458645.296816086189
(2019-Jun-10.79681609)
2.7262e-05 TDB
period 1259.103705919576
3.45
5.9484e-06
1.629e-08
d
yr
n .2859176716798535 1.3508e-09 deg/d
Q 2.78104108212226 8.759e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1624  
   data-arc span      15026 days (41.14 yr)  
   first obs. used      1979-11-22  
   last obs. used      2021-01-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46497  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:00:46  

Additional Information
 Earth MOID = .776738 au 
 Jupiter MOID = 2.22874 au 
 T_jup = 3.569 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457546.5 (2016-Jun-07.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2183238859977726 3.6284e-08  
q 1.784173172873402 8.2562e-08 au
tp 2457385.496064050301
(2015-Dec-28.99606405)
2.8413e-05 TDB
node 291.9037975611922 6.0172e-05 deg
peri 295.529740331983 6.0658e-05 deg
i 4.194197942421374 2.819e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1624  
   data-arc span      15026 days (41.14 yr)  
   first obs. used      1979-11-22  
   last obs. used      2021-01-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46497  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:00:46  

Additional Information
 Jupiter MOID = 2.22874 au 
 T_jup = 3.569 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.316528935197613E-15 -2.988706693689257E-15 -5.05505078982062E-13 -3.63907771078994E-15 -1.567622664765464E-13 -1.734921367204463E-15
q -2.988706693689257E-15 6.816479579701577E-15 1.108231083101613E-12 9.446168431207986E-15 3.444679572482974E-13 4.015259387935771E-15
tp -5.05505078982062E-13 1.108231083101613E-12 8.073000767908074E-10 4.843524223691625E-12 2.410999805120615E-10 1.220478171272866E-12
node -3.63907771078994E-15 9.446168431207986E-15 4.843524223691625E-12 3.62069240428809E-9 -3.609514879061288E-9 1.854363473258602E-11
peri -1.567622664765464E-13 3.444679572482974E-13 2.410999805120615E-10 -3.609514879061288E-9 3.679443002646774E-9 -1.812362133052156E-11
i -1.734921367204463E-15 4.015259387935771E-15 1.220478171272866E-12 1.854363473258602E-11 -1.812362133052156E-11 7.946592032410716E-12

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 15.06   n/a E2021B10  
rotation period rot_per 3.04601 h n/a LCDB (Rev. 2020-October); 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]

11459 Andráspál           Discovered 1981 Mar. 1 by S. J. Bus at Siding Spring.
András Pál (b. 1981) is a researcher at the Konkoly Observatory in Budapest who develops computer tools for the processing and interpretation of small body visual and infrared observations.
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

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