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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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1377396193485423 3.4683e-08  
a 2.224163472357507 8.2918e-09 au
q 1.917808042306052 7.9783e-08 au
i 3.299519661298476 3.615e-06 deg
node 178.7225889366283 6.0191e-05 deg
peri 248.7786498948531 6.1891e-05 deg
M 228.2528515151721 1.5908e-05 deg
tp 2459443.891339766042
(2021-Aug-17.39133977)
5.5085e-05 TDB
period 1211.569921258349
3.32
6.7752e-06
1.855e-08
d
yr
n .2971351415080528 1.6616e-09 deg/d
Q 2.530518902408962 9.4339e-09 au
  Orbit Determination Parameters
   # obs. used (total)      929  
   data-arc span      9527 days (26.08 yr)  
   first obs. used      1994-10-09  
   last obs. used      2020-11-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5724  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 04:20:31  

Additional Information
 Earth MOID = .934525 au 
 Jupiter MOID = 2.73731 au 
 T_jup = 3.632 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457324.5 (2015-Oct-29.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1384164472284787 3.4748e-08  
q 1.915730298212723 8.0004e-08 au
tp 2457022.663577014772
(2014-Dec-31.16357701)
4.7339e-05 TDB
node 178.7835362444639 6.0193e-05 deg
peri 248.8841226747464 6.1871e-05 deg
i 3.299510705488547 3.616e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      929  
   data-arc span      9527 days (26.08 yr)  
   first obs. used      1994-10-09  
   last obs. used      2020-11-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5724  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 04:20:31  

Additional Information
 Jupiter MOID = 2.73731 au 
 T_jup = 3.632 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.207392227749514E-15 -2.770217458126894E-15 -4.110406633382568E-13 6.23803305243865E-15 -1.069608006575577E-13 -1.216878596226605E-15
q -2.770217458126894E-15 6.400675135057087E-15 1.062617737409364E-12 -1.463599023171533E-14 2.827074833480042E-13 2.907180948776103E-15
tp -4.110406633382568E-13 1.062617737409364E-12 2.240954181106319E-9 4.324232923258455E-13 6.875256964819944E-10 1.577078895383361E-12
node 6.23803305243865E-15 -1.463599023171533E-14 4.324232923258455E-13 3.623221675088056E-9 -3.616445991478997E-9 2.365616856258462E-11
peri -1.069608006575577E-13 2.827074833480042E-13 6.875256964819944E-10 -3.616445991478997E-9 3.828059189084064E-9 -2.31570701214144E-11
i -1.216878596226605E-15 2.907180948776103E-15 1.577078895383361E-12 2.365616856258462E-11 -2.31570701214144E-11 1.307537523350073E-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 16.1   n/a MPO432451  

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

[ 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
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 22 CATAB v2.0f-lin.ifort 2020-Dec-18 04:20:34 2020-Dec-18 04:20

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