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JPL Small-Body Database Browser
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146286 (2001 FR155)
Classification: Main-belt Asteroid          SPK-ID: 2146286
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1740127090846128 4.3e-08  
a 2.380958924185807 1.1208e-08 au
q 1.966641811569049 1.0329e-07 au
i 3.314639444816222 4.3802e-06 deg
node 78.89895759349596 8.1222e-05 deg
peri 175.5871862073591 8.2256e-05 deg
M 18.06595973997276 1.4657e-05 deg
tp 2458933.158184766968
(2020-Mar-24.65818477)
5.4411e-05 TDB
period 1341.918936653625
3.67
9.4757e-06
2.594e-08
d
yr
n .268272538800101 1.8943e-09 deg/d
Q 2.795276036802564 1.3159e-08 au
  Orbit Determination Parameters
   # obs. used (total)      431  
   data-arc span      7589 days (20.78 yr)  
   first obs. used      1998-06-22  
   last obs. used      2019-04-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .66052  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 14:42:24  

Additional Information
 Earth MOID = .951937 au 
 Jupiter MOID = 2.25039 au 
 T_jup = 3.515 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456919.5 (2014-Sep-19.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1744187489320067 4.3015e-08  
q 1.964756314761743 1.033e-07 au
tp 2456249.507088932950
(2012-Nov-18.00708893)
4.8055e-05 TDB
node 78.94959318076312 8.1149e-05 deg
peri 175.4016429130921 8.2173e-05 deg
i 3.316348200723681 4.3829e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      431  
   data-arc span      7589 days (20.78 yr)  
   first obs. used      1998-06-22  
   last obs. used      2019-04-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .66052  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 14:42:24  

Additional Information
 Jupiter MOID = 2.25039 au 
 T_jup = 3.515 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.85028743792353E-15 -4.425623878214688E-15 -7.069909105471378E-13 -2.559170965240616E-14 -1.217256401068662E-13 -7.263948289939711E-16
q -4.425623878214688E-15 1.067133343923279E-14 1.746571030933407E-12 6.039624169141163E-14 3.172575126127954E-13 1.856378676920006E-15
tp -7.069909105471378E-13 1.746571030933407E-12 2.309271293720518E-9 2.135567919297185E-12 6.382914329808333E-10 1.285012965618683E-12
node -2.559170965240616E-14 6.039624169141163E-14 2.135567919297185E-12 6.585092601427272E-9 -6.573621508261784E-9 -9.637061449476435E-11
peri -1.217256401068662E-13 3.172575126127954E-13 6.382914329808333E-10 -6.573621508261784E-9 6.752348358029636E-9 9.657621995800328E-11
i -7.263948289939711E-16 1.856378676920006E-15 1.285012965618683E-12 -9.637061449476435E-11 9.657621995800328E-11 1.920962480250592E-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 16.5   n/a MPO426924  

146286 (2001 FR155)          Discovered 2001-Mar-26 by NEAT at Haleakala
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

[ 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
1912-May-31 14:57 00:02 David 0.00825517934914189 0.00824213753038255 0.00826825321463149 6.52585314909393 6.52585286866731 2419554.123189276 1.92065416793196 1041.36627041535 46.246854825268 51.3833859957265 20867.3818072503 T 16 CATAB v2.0e-lin.ifort 2019-Jul-13 14:42:29 2019-Jul-13 14:42

Alternate Designations
 2001 FR155 = 2005 JD32 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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