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JPL Small-Body Database Browser
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18768 Sarahbates (1999 JE22)
Classification: Main-belt Asteroid          SPK-ID: 2018768
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1278279913106822 4.6403e-08  
a 2.324653164601256 9.8736e-09 au
q 2.027497420076257 1.1003e-07 au
i 4.598085371298493 5.2628e-06 deg
node 336.0991338195488 5.1476e-05 deg
peri 245.2910307559885 5.5345e-05 deg
M 339.5649743089515 2.3652e-05 deg
tp 2459073.986635290859
(2020-Aug-12.48663529)
8.524e-05 TDB
period 1294.600217522501
3.54
8.2479e-06
2.258e-08
d
yr
n .2780781241400825 1.7716e-09 deg/d
Q 2.621808909126255 1.1136e-08 au
  Orbit Determination Parameters
   # obs. used (total)      786  
   data-arc span      9136 days (25.01 yr)  
   first obs. used      1995-01-29  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57307  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:33:57  

Additional Information
 Earth MOID = 1.02467 au 
 Jupiter MOID = 2.37067 au 
 T_jup = 3.560 
[ 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 15.4   n/a MPO302180  
diameter diameter 2.156 km 0.397 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.316   0.151 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18768 Sarahbates           Discovered 1999 May 10 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Sarah Woodring Bates (b. 1985) was awarded third place in the 2003 Intel International Science and Engineering Fair for her earth and space sciences project. She attends the Eleanor Roosevelt High School, Greenbelt, Maryland, 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

[ show close-approach data ]
Alternate Designations
 1999 JE22 = 1995 BA9 = 1997 YJ9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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