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JPL Small-Body Database Browser
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18801 Noelleoas (1999 JO76)
Classification: Main-belt Asteroid          SPK-ID: 2018801
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .142558890195292 2.9817e-08  
a 2.375811522692908 7.863e-09 au
q 2.03711846870462 7.0194e-08 au
i 6.863739560798947 3.5933e-06 deg
node 125.6556564453984 2.7982e-05 deg
peri 163.7461805125808 3.0966e-05 deg
M 230.1883884670977 1.3692e-05 deg
tp 2459482.811307765395
(2021-Sep-25.31130777)		 5.1895e-05 TDB
period 1337.569642231373
3.66		 6.6402e-06
1.818e-08		 d
yr
n .2691448644120223 1.3361e-09 deg/d
Q 2.714504576681195 8.9839e-09 au
   Orbit Determination Parameters
   # obs. used (total)      1854  
   data-arc span      10049 days (27.51 yr)  
   first obs. used      1992-07-31  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50746  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:35:05  

Additional Information
 Earth MOID = 1.0219 au 
 Jupiter MOID = 2.45476 au 
 T_jup = 3.518 
[ 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 14.2   n/a MPO452437  
diameter diameter 3.626 km 0.272 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 0.92 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, M.; Trilling, D.E.; et al. (2018) Ap. J. Suppl. Series 237, A19.]
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]
geometric albedo albedo 0.337   0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18801 Noelleoas           Discovered 1999 May 10 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Noelle Joan Oas (b. 1984) was awarded third place in the 2003 Intel International Science and Engineering Fair for her environmental science team project. She attends the Winona Senior High School, Winona, Minnesota, 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 JO76 = 1992 OB1 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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