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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 ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04902482163121906 3.5411e-08  
a 3.025888203481079 1.6167e-08 au
q 2.877544574029409 1.0445e-07 au
i 2.331691411379112 3.6861e-06 deg
node 155.0332103754469 9.3358e-05 deg
peri 134.7974895170865 0.00010238 deg
M 175.4261714085138 4.4064e-05 deg
tp 2458263.650932855589
(2018-May-25.15093286)
0.00023342 TDB
period 1922.550446515758
5.26
1.5408e-05
4.218e-08
d
yr
n .1872512633686303 1.5007e-09 deg/d
Q 3.174231832932748 1.696e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1756  
   data-arc span      10863 days (29.74 yr)  
   first obs. used      1991-06-07  
   last obs. used      2021-03-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51127  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:38:02  

Additional Information
 Earth MOID = 1.85996 au 
 Jupiter MOID = 1.90656 au 
 T_jup = 3.242 
[ 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 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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