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65942 (1998 FL90)
Classification: Main-belt Asteroid          SPK-ID: 2065942
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2093932514736578 4.3687e-08  
a 2.323000119365208 1.1219e-08 au
q 1.836579571197632 1.0114e-07 au
i 8.730873938919878 4.5273e-06 deg
node 18.38360869753841 2.7416e-05 deg
peri 9.658894924559206 2.9029e-05 deg
M 224.9932893663746 1.1572e-05 deg
tp 2459485.481452990334
(2021-Sep-27.98145299)
4.3594e-05 TDB
period 1293.219590767773
3.54
9.3682e-06
2.565e-08
d
yr
n .2783749972317316 2.0166e-09 deg/d
Q 2.809420667532784 1.3568e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1000  
   data-arc span      13355 days (36.56 yr)  
   first obs. used      1982-10-14  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58371  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:27:09  

Additional Information
 Earth MOID = .841628 au 
 Jupiter MOID = 2.64867 au 
 T_jup = 3.531 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456927.5 (2014-Sep-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .208041302826783 4.3517e-08  
q 1.840046801743108 1.0054e-07 au
tp 2456898.529248923438
(2014-Aug-29.02924892)
3.6142e-05 TDB
node 18.43029136607873 2.7443e-05 deg
peri 9.608084527685557 2.909e-05 deg
i 8.725773625778245 4.5236e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1000  
   data-arc span      13355 days (36.56 yr)  
   first obs. used      1982-10-14  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58371  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:27:09  

Additional Information
 Jupiter MOID = 2.64867 au 
 T_jup = 3.531 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.893712866336941E-15 -4.357976449518646E-15 2.556074341157343E-13 3.29601906283238E-14 -2.915442973662518E-14 -5.024882869318192E-15
q -4.357976449518646E-15 1.010870599265638E-14 -5.283346001232514E-13 -7.644752727944582E-14 8.439592268539472E-14 1.178901207907544E-14
tp 2.556074341157343E-13 -5.283346001232514E-13 1.30626253973502E-9 1.243215561449044E-11 3.555154643757112E-10 -3.244996162513299E-12
node 3.29601906283238E-14 -7.644752727944582E-14 1.243215561449044E-11 7.5314285787391E-10 -7.416169677613318E-10 2.456220892823919E-12
peri -2.915442973662518E-14 8.439592268539472E-14 3.555154643757112E-10 -7.416169677613318E-10 8.462231887490069E-10 -3.185470579113297E-12
i -5.024882869318192E-15 1.178901207907544E-14 -3.244996162513299E-12 2.456220892823919E-12 -3.185470579113297E-12 2.046277152670161E-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 14.9   n/a MPO385236  
diameter diameter 2.480 km 0.498 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.345   0.138 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

65942 (1998 FL90)          Discovered 1998-Mar-24 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 FL90 = 1982 TJ1 = 2000 WJ135 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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