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15050 Heddal (1998 XC96)
Classification: Outer Main-belt Asteroid          SPK-ID: 2015050
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .123174508229264 3.4466e-08  
a 3.203273000421704 2.0543e-08 au
q 2.808711423870682 1.0582e-07 au
i 3.903683415021828 3.8838e-06 deg
node 315.1376520833705 6.0638e-05 deg
peri 335.3094478867746 6.3238e-05 deg
M 112.0728960762833 1.9862e-05 deg
tp 2458348.590288805140
(2018-Aug-18.09028881)
0.0001132 TDB
period 2094.061135623797
5.73
2.0144e-05
5.515e-08
d
yr
n .1719147516162464 1.6538e-09 deg/d
Q 3.597834576972726 2.3073e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1716  
   data-arc span      10995 days (30.10 yr)  
   first obs. used      1990-09-18  
   last obs. used      2020-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49228  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:36:08  

Additional Information
 Earth MOID = 1.7931 au 
 Jupiter MOID = 1.58799 au 
 T_jup = 3.178 
[ show covariance matrix ]

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 13.3   n/a MPO332959  
diameter diameter 12.746 km 0.253 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.768 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.]
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.090   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15050 Heddal           Discovered 1998 Dec. 12 by O. A. Naranjo at Merida.
Heddal is the name of a small school in a small village of the same name in southern Norway. This school was one of three winners of the Best School Teaching of Astronomy competition held during the 2009 Year of Astronomy in Norway.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20110715/MPCPages.arcLast Updated: 2011-07-20

[ show close-approach data ]
Alternate Designations
 1998 XC96 = 1990 SN19 = 1997 WV43 = 1998 YZ10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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