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91291 (1999 FD27)
Classification: Main-belt Asteroid          SPK-ID: 2091291
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .217208925000536 3.3712e-08  
a 2.622194189174167 1.3332e-08 au
q 2.052630208200994 9.162e-08 au
i 12.6282799560931 5.9064e-06 deg
node 164.383574722858 1.7077e-05 deg
peri 95.59636949542559 2.2954e-05 deg
M 309.6146498914199 1.5898e-05 deg
tp 2459217.568838657210
(2021-Jan-03.06883866)
6.9427e-05 TDB
period 1550.942520954886
4.25
1.1828e-05
3.238e-08
d
yr
n .232116919315846 1.7702e-09 deg/d
Q 3.19175817014734 1.6228e-08 au
  Orbit Determination Parameters
   # obs. used (total)      653  
   data-arc span      7705 days (21.10 yr)  
   first obs. used      1999-03-19  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60976  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 16:39:02  

Additional Information
 Earth MOID = 1.08398 au 
 Jupiter MOID = 2.04419 au 
 T_jup = 3.337 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457454.5 (2016-Mar-07.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2170722809117519 3.3779e-08  
q 2.053896227900349 9.1914e-08 au
tp 2457664.813982709163
(2016-Oct-03.31398271)
6.3357e-05 TDB
node 164.4120617019796 1.7075e-05 deg
peri 95.30194811616768 2.2943e-05 deg
i 12.62734921265401 5.9063e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      653  
   data-arc span      7705 days (21.10 yr)  
   first obs. used      1999-03-19  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60976  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 16:39:02  

Additional Information
 Jupiter MOID = 2.04419 au 
 T_jup = 3.337 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.141008687510158E-15 -3.085712411099224E-15 -8.890431017120615E-13 -7.055218701878775E-15 -1.732429269924437E-13 -1.051379593318167E-14
q -3.085712411099224E-15 8.448252315196077E-15 2.637128496588965E-12 1.868341351976658E-14 5.216930776546022E-13 2.90567027761476E-14
tp -8.890431017120615E-13 2.637128496588965E-12 4.014080062888396E-9 1.782711313144175E-11 9.776057064554198E-10 2.203633710614407E-11
node -7.055218701878775E-15 1.868341351976658E-14 1.782711313144175E-11 2.915447482606021E-10 -2.799294041704828E-10 3.969591751834297E-11
peri -1.732429269924437E-13 5.216930776546022E-13 9.776057064554198E-10 -2.799294041704828E-10 5.263818064028326E-10 -3.366278894765933E-11
i -1.051379593318167E-14 2.90567027761476E-14 2.203633710614407E-11 3.969591751834297E-11 -3.366278894765933E-11 3.488468001286689E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.5   n/a MPO422268  

91291 (1999 FD27)          Discovered 1999-Mar-19 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

Alternate Designations
 1999 FD27 = 2000 SM249 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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