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18954 Sarahbounds (2000 QT119)
Classification: Main-belt Asteroid          SPK-ID: 2018954
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1504455654390758 2.6456e-08  
a 2.23515743679526 6.3914e-09 au
q 1.898887912371242 5.8153e-08 au
i 5.096619573707576 2.7841e-06 deg
node 274.5830595609749 4.0254e-05 deg
peri 330.6288079839457 4.1911e-05 deg
M 116.3041470153764 1.2754e-05 deg
tp 2458806.175914566651
(2019-Nov-18.67591457)
4.2834e-05 TDB
period 1220.56413635223
3.34
5.2353e-06
1.433e-08
d
yr
n .2949455823566091 1.2651e-09 deg/d
Q 2.571426961219278 7.353e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1965  
   data-arc span      25243 days (69.11 yr)  
   first obs. used      1951-11-29  
   last obs. used      2021-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44539  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:40:58  

Additional Information
 Earth MOID = .885691 au 
 Jupiter MOID = 2.46046 au 
 T_jup = 3.619 
[ 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 14.88   n/a E2021B10  
diameter diameter 2.759 km 0.150 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.2988 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 0.442   0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18954 Sarahbounds           Discovered 2000 Aug. 25 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Sarah Brittany Bounds (b. 1985) was awarded fourth place in the 2003 Intel International Science and Engineering Fair for her botany project. She attends the Mercy Cross High School, Biloxi, Mississippi, U.S.A.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040830/MPCPages.arcLast Updated: 2004-09-06

Alternate Designations
 2000 QT119 = 1989 EA5 = 1999 FW21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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