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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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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 
[ 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 16.5   n/a MPO426924  

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

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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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