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24220 (1999 XJ72)
Classification: Main-belt Asteroid          SPK-ID: 2024220
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2015395833303431 3.5262e-08  
a 2.392757198652318 7.6585e-09 au
q 1.910521909825251 8.631e-08 au
i 2.323692988412339 3.192e-06 deg
node 82.14665268096299 0.00010241 deg
peri 248.592757590243 0.00010275 deg
M 23.02898973605663 9.5248e-06 deg
tp 2459310.019386962470
(2021-Apr-05.51938696)
3.566e-05 TDB
period 1351.905622015435
3.70
6.4906e-06
1.777e-08
d
yr
n .2662907780968528 1.2785e-09 deg/d
Q 2.874992487479385 9.202e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1495  
   data-arc span      10538 days (28.85 yr)  
   first obs. used      1991-09-15  
   last obs. used      2020-07-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48467  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:37:54  

Additional Information
 Earth MOID = .900454 au 
 Jupiter MOID = 2.4823 au 
 T_jup = 3.502 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457229.5 (2015-Jul-26.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2007729940089953 3.5142e-08  
q 1.913707997247362 8.5833e-08 au
tp 2456604.123119869827
(2013-Nov-07.62311987)
3.4844e-05 TDB
node 82.22752290746911 0.00010228 deg
peri 248.3680165822762 0.00010263 deg
i 2.324266774849293 3.1919e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1495  
   data-arc span      10538 days (28.85 yr)  
   first obs. used      1991-09-15  
   last obs. used      2020-07-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48467  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:37:54  

Additional Information
 Jupiter MOID = 2.4823 au 
 T_jup = 3.502 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.234990359021774E-15 -3.009386193945968E-15 5.277665246918417E-13 1.126527983189358E-14 1.43435404021608E-13 -6.107104357216301E-16
q -3.009386193945968E-15 7.367344504821442E-15 -1.280782186474011E-12 -2.528674813290315E-14 -3.459608736665651E-13 1.487784087753084E-15
tp 5.277665246918417E-13 -1.280782186474011E-12 1.214104202129053E-9 1.411737423756745E-11 3.154688259925376E-10 -2.631874143652864E-13
node 1.126527983189358E-14 -2.528674813290315E-14 1.411737423756745E-11 1.046177335925901E-8 -1.044880813094931E-8 -9.946904192258367E-11
peri 1.43435404021608E-13 -3.459608736665651E-13 3.154688259925376E-10 -1.044880813094931E-8 1.053204233000056E-8 9.930756361966647E-11
i -6.107104357216301E-16 1.487784087753084E-15 -2.631874143652864E-13 -9.946904192258367E-11 9.930756361966647E-11 1.018821379574957E-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 15.15   n/a E2021B10  

24220 (1999 XJ72)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20010408/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XJ72 = 1991 RG37 = 1998 KT41 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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