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19785 (2000 QU103)
Classification: Main-belt Asteroid          SPK-ID: 2019785
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1259232554860324 3.4873e-08  
a 2.665093930539381 1.0328e-08 au
q 2.329496626629796 9.5311e-08 au
i 12.31139091304134 3.5158e-06 deg
node 158.1023809115065 1.596e-05 deg
peri 31.54315905809734 2.1026e-05 deg
M 39.84282881626844 1.2578e-05 deg
tp 2459024.620641896719
(2020-Jun-24.12064190)
5.5487e-05 TDB
period 1589.158470879656
4.35
9.2377e-06
2.529e-08
d
yr
n .2265349910639982 1.3168e-09 deg/d
Q 3.000691234448966 1.1629e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1921  
   data-arc span      15502 days (42.44 yr)  
   first obs. used      1978-09-02  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45745  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:07:06  

Additional Information
 Earth MOID = 1.34034 au 
 Jupiter MOID = 1.9766 au 
 T_jup = 3.340 
[ 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 14.18   n/a E2021B10  
diameter diameter 7.561 km 2.001 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
rotation period rot_per 5.41326 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 0.057   0.039 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

19785 (2000 QU103)          Discovered 2000-Aug-28 by LINEAR at Socorro
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 QU103 = 1978 RF9 = 1978 RH12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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