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19021 (2000 SC8)
Classification: Main-belt Asteroid          SPK-ID: 2019021
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3046913706038868 2.2003e-08  
a 2.678957468107187 1.2097e-08 au
q 1.86270224536009 5.8288e-08 au
i 46.63166190185137 1.8676e-06 deg
node 182.1815148435653 1.8599e-06 deg
peri 286.5997900530363 5.9752e-06 deg
M 182.3178950312324 7.8372e-06 deg
tp 2459990.975373958458
(2023-Feb-15.47537396)
3.8329e-05 TDB
period 1601.574534897963
4.38
1.0848e-05
2.97e-08
d
yr
n .2247787987106924 1.5225e-09 deg/d
Q 3.495212690854284 1.5783e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1801  
   data-arc span      24258 days (66.41 yr)  
   first obs. used      1954-06-27  
   last obs. used      2020-11-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41265  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:44:27  

Additional Information
 Earth MOID = 1.11915 au 
 Jupiter MOID = 2.21845 au 
 T_jup = 2.881 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.35   n/a E2021B10  
diameter diameter 9.235 km 0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.02294 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 0.075   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19021 (2000 SC8)          Discovered 2000-Sep-20 by LINEAR at Socorro
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2000 SC8 = 1991 SQ4 = 1991 TZ1 = 1997 HJ5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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