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15451 (1998 XK42)
Classification: Main-belt Asteroid          SPK-ID: 2015451
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0567811877478385 2.5473e-08  
a 3.009014056716937 1.5473e-08 au
q 2.838158664626607 7.926e-08 au
i 11.21821324724912 2.5574e-07 deg
node 77.43652550692181 3.1852e-06 deg
peri 177.30445941993 1.2317e-05 deg
M 314.4995221412355 1.285e-05 deg
tp 2459637.461805535244
(2022-Feb-26.96180554)
6.7984e-05 TDB
period 1906.490966137809
5.22
1.4706e-05
4.026e-08
d
yr
n .1888285894841097 1.4565e-09 deg/d
Q 3.179869448807267 1.6352e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2607  
   data-arc span      13232 days (36.23 yr)  
   first obs. used      1985-05-11  
   last obs. used      2021-08-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42395  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 14:00:28  

Additional Information
 Earth MOID = 1.82344 au 
 Jupiter MOID = 1.85816 au 
 T_jup = 3.219 
[ 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 12.58   n/a MPO636296  
diameter diameter 10.956 km 0.111 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 38.851 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.]
geometric albedo albedo 0.177   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15451 (1998 XK42)          Discovered 1998-Dec-14 by LINEAR at Socorro
Reference: 20000621/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1998 XK42 = 1985 JM1 = 2000 FP31 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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