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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1426068383640751 2.9705e-08  
a 2.375400585992019 7.7755e-09 au
q 2.036652218575526 6.997e-08 au
i 6.863848471333052 3.5816e-06 deg
node 125.6560975404418 2.7052e-05 deg
peri 163.8165270952411 2.9936e-05 deg
M 283.9504211184767 1.3551e-05 deg
tp 2459482.986715150761
(2021-Sep-25.48671515)
5.0976e-05 TDB
period 1337.222624371183
3.66
6.5658e-06
1.798e-08
d
yr
n .2692147092330918 1.3218e-09 deg/d
Q 2.714148953408512 8.8843e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2037  
   data-arc span      10394 days (28.46 yr)  
   first obs. used      1992-07-31  
   last obs. used      2021-01-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5047  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:40:09  

Additional Information
 Earth MOID = 1.01948 au 
 Jupiter MOID = 2.45455 au 
 T_jup = 3.518 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456882.5 (2014-Aug-13.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1433803678198949 2.9723e-08  
q 2.035056672942284 7.0091e-08 au
tp 2456807.755918723854
(2014-May-30.25591872)
4.5963e-05 TDB
node 125.7090526331563 2.7038e-05 deg
peri 163.7275067972576 2.9895e-05 deg
i 6.865620943769368 3.5831e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2037  
   data-arc span      10394 days (28.46 yr)  
   first obs. used      1992-07-31  
   last obs. used      2021-01-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5047  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:40:09  

Additional Information
 Jupiter MOID = 2.45455 au 
 T_jup = 3.518 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.834400141445909E-16 -2.074121960234203E-15 3.634935705929529E-13 -2.379241058834562E-15 1.066778768776101E-13 -5.906366822239683E-17
q -2.074121960234203E-15 4.912710233520667E-15 -7.91970271205767E-13 6.03240487946542E-15 -2.341258428549587E-13 3.414247492983614E-16
tp 3.634935705929529E-13 -7.91970271205767E-13 2.112625783757725E-9 -3.102342497383157E-12 5.95964255300863E-10 1.05365969398374E-12
node -2.379241058834562E-15 6.03240487946542E-15 -3.102342497383157E-12 7.310284623965947E-10 -7.26199019458968E-10 1.892485802885206E-11
peri 1.066778768776101E-13 -2.341258428549587E-13 5.95964255300863E-10 -7.26199019458968E-10 8.936844997042462E-10 -1.849045721873492E-11
i -5.906366822239683E-17 3.414247492983614E-16 1.05365969398374E-12 1.892485802885206E-11 -1.849045721873492E-11 1.283838008440958E-11

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 14.23   n/a E2021B10  
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 12.7612 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.337   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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