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24231 (1999 XN91)
Classification: Main-belt Asteroid          SPK-ID: 2024231
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04894006868621342 3.5403e-08  
a 3.02604994954565 1.6204e-08 au
q 2.877954857166973 1.0442e-07 au
i 2.33194595913485 3.6847e-06 deg
node 155.0289850007912 9.3182e-05 deg
peri 134.9366776555807 0.00010223 deg
M 211.9752597984142 4.4178e-05 deg
tp 2460187.077358390441
(2023-Aug-30.57735839)
0.00023776 TDB
period 1922.704600818545
5.26
1.5444e-05
4.228e-08
d
yr
n .1872362503562631 1.5039e-09 deg/d
Q 3.174145041924326 1.6997e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1770  
   data-arc span      10928 days (29.92 yr)  
   first obs. used      1991-06-07  
   last obs. used      2021-05-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51261  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:58:14  

Additional Information
 Earth MOID = 1.86196 au 
 Jupiter MOID = 1.90563 au 
 T_jup = 3.242 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457211.5 (2015-Jul-08.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05250777351631377 3.5447e-08  
q 2.864348672181058 1.0498e-07 au
tp 2456336.675582526497
(2013-Feb-13.17558253)
0.00021547 TDB
node 155.0813819804159 9.3123e-05 deg
peri 133.7004881346345 0.0001011 deg
i 2.331122696881948 3.6909e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1770  
   data-arc span      10928 days (29.92 yr)  
   first obs. used      1991-06-07  
   last obs. used      2021-05-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51261  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:58:14  

Additional Information
 Jupiter MOID = 1.90563 au 
 T_jup = 3.242 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.256471880628176E-15 -3.684149211650264E-15 1.308668054664279E-12 1.497928007389967E-15 2.219472361140104E-13 2.489461708004068E-16
q -3.684149211650264E-15 1.102172012916198E-14 -3.35761759392179E-12 -2.935700739077037E-15 -5.465815385075019E-13 -6.895421132065375E-16
tp 1.308668054664279E-12 -3.35761759392179E-12 4.642683833699889E-8 2.301850298222065E-11 8.495931171443654E-9 -1.594871475762013E-12
node 1.497928007389967E-15 -2.935700739077037E-15 2.301850298222065E-11 8.671974872802517E-9 -8.660278682660133E-9 -6.726017512715021E-12
peri 2.219472361140104E-13 -5.465815385075019E-13 8.495931171443654E-9 -8.660278682660133E-9 1.022064539341073E-8 6.427137079987864E-12
i 2.489461708004068E-16 -6.895421132065375E-16 -1.594871475762013E-12 -6.726017512715021E-12 6.427137079987864E-12 1.362266226638102E-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 14.03   n/a MPCxxxxx  

24231 (1999 XN91)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20010408/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 XN91 = 1996 FP20 = 1998 VV12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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