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17914 Joannelee (1999 FA54)
Classification: Main-belt Asteroid          SPK-ID: 2017914
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1393602121284682 3.4873e-08  
a 2.408189242133882 9.8249e-09 au
q 2.072583478504609 8.2135e-08 au
i 3.654267261516652 3.2784e-06 deg
node 275.6657092455046 7.3959e-05 deg
peri 330.1809562937079 7.5595e-05 deg
M 185.5286887558126 1.6001e-05 deg
tp 2459662.039634702798
(2022-Mar-23.53963470)
6.1033e-05 TDB
period 1365.005322621152
3.74
8.3534e-06
2.287e-08
d
yr
n .2637352353386505 1.614e-09 deg/d
Q 2.743795005763154 1.1194e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1289  
   data-arc span      14089 days (38.57 yr)  
   first obs. used      1981-07-02  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50939  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:15:12  

Additional Information
 Earth MOID = 1.05996 au 
 Jupiter MOID = 2.28558 au 
 T_jup = 3.505 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456737.5 (2014-Mar-21.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1391035180731539 3.4787e-08  
q 2.072832279746134 8.1859e-08 au
tp 2456933.069603664360
(2014-Oct-02.56960366)
6.1636e-05 TDB
node 275.7179526937334 7.4021e-05 deg
peri 330.3336610154961 7.5676e-05 deg
i 3.652599517993305 3.2772e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1289  
   data-arc span      14089 days (38.57 yr)  
   first obs. used      1981-07-02  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50939  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:15:12  

Additional Information
 Jupiter MOID = 2.28558 au 
 T_jup = 3.505 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.210145277155613E-15 -2.833366071651904E-15 -8.176066761672478E-13 -8.592696297036619E-15 -2.261568573472657E-13 3.053981579712156E-16
q -2.833366071651904E-15 6.700862221829539E-15 1.884440427360431E-12 1.941850557379607E-14 5.196904499384895E-13 -6.851906485973622E-16
tp -8.176066761672478E-13 1.884440427360431E-12 3.799012780795708E-9 1.427065257739137E-11 9.9810141596594E-10 -7.307889260100153E-13
node -8.592696297036619E-15 1.941850557379607E-14 1.427065257739137E-11 5.479130329665158E-9 -5.46414528338081E-9 -2.537789349465452E-11
peri -2.261568573472657E-13 5.196904499384895E-13 9.9810141596594E-10 -5.46414528338081E-9 5.726852577234516E-9 2.510544059963721E-11
i 3.053981579712156E-16 -6.851906485973622E-16 -7.307889260100153E-13 -2.537789349465452E-11 2.510544059963721E-11 1.073987320751914E-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 14.8   n/a MPO439217  
diameter diameter 2.510 km 0.618 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.370   0.260 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17914 Joannelee           Discovered 1999 Mar. 20 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Joanne June Lee (b. 1985) was awarded third place in the 2003 Intel International Science and Engineering Fair for her medicine and health team project. She attends the Mira Loma High School, Sacramento, California, 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: 20040614/MPCPages.arcLast Updated: 2009-12-11

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2185-Jul-20 13:20 00:01 Hebe 0.0329119130852932 0.0329110527961295 0.032912778883049 8.29013098350804 8.29013096072336 2519316.055725992 1.21695408287547 1101.80517177212 34.1041562447786 -88.6352374047509 144303.381126067 T 31 CATAB v2.0f-lin.ifort 2020-Feb-22 22:15:22 2020-Feb-22 22:15

Alternate Designations
 1999 FA54 = 1981 NC = 2000 QQ90 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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