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91303 (1999 FG41)
Classification: Main-belt Asteroid          SPK-ID: 2091303
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1377396193982118 3.4805e-08  
a 2.224163472362894 8.301e-09 au
q 1.917808042200224 8.0019e-08 au
i 3.299519562575049 3.6281e-06 deg
node 178.7225864408845 6.065e-05 deg
peri 248.7786523775589 6.2337e-05 deg
M 228.2528515202441 1.5914e-05 deg
tp 2459443.891339750583
(2021-Aug-17.39133975)
5.5102e-05 TDB
period 1211.569921262751
3.32
6.7827e-06
1.857e-08
d
yr
n .2971351415069733 1.6634e-09 deg/d
Q 2.530518902525564 9.4443e-09 au
  Orbit Determination Parameters
   # obs. used (total)      921  
   data-arc span      9497 days (26.00 yr)  
   first obs. used      1994-10-09  
   last obs. used      2020-10-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56904  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:40:22  

Additional Information
 Earth MOID = .934525 au 
 Jupiter MOID = 2.73731 au 
 T_jup = 3.632 
[ 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 16.1   n/a MPO432451  

91303 (1999 FG41)          Discovered 1999-Mar-20 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

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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
2014-Jan-28 02:15 < 00:01 Thisb 0.0350936108330471 0.0350922727518873 0.0350949489293905 4.123395676999 4.12339562988048 2456685.594023371 0.57374916648138 80.7834246054214 40.1727236339282 40.5722216867371 98238.9244537262 T 21 CATAB v2.0f-lin.ifort 2020-Nov-12 20:40:25 2020-Nov-12 20:40

Alternate Designations
 1999 FG41 = 2001 XD30 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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