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18732 (1998 KP19)
Classification: Outer Main-belt Asteroid          SPK-ID: 2018732
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1025484655905507 2.0668e-08  
a 3.250139643173705 1.8115e-08 au
q 2.916842809811222 6.95e-08 au
i 22.87475203119354 7.0714e-07 deg
node 216.8018968342511 1.0635e-06 deg
peri 78.85522787466334 6.6213e-06 deg
M 282.3348152357937 5.1108e-06 deg
tp 2459858.216438810574
(2022-Oct-05.71643881)
3.1209e-05 TDB
period 2140.185701951898
5.86
1.7892e-05
4.899e-08
d
yr
n .1682097023971666 1.4063e-09 deg/d
Q 3.583436476536189 1.9972e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2062  
   data-arc span      10654 days (29.17 yr)  
   first obs. used      1992-04-25  
   last obs. used      2021-06-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48041  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 04:40:12  

Additional Information
 Earth MOID = 2.00319 au 
 Jupiter MOID = 1.662 au 
 T_jup = 3.050 
[ 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 12.77   n/a MPCxxxxx  
diameter diameter 15.835 km 0.173 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 31.3126 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 0.064   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18732 (1998 KP19)          Discovered 1998-May-22 by LINEAR at Socorro
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 KP19 = 1992 HN6 = 2000 SY276 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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