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JPL Small-Body Database Browser
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91824 (1999 TU280)
Classification: Main-belt Asteroid          SPK-ID: 2091824
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1133584516854596 4.4691e-08  
a 3.019393576778751 2.6458e-08 au
q 2.67711979588609 1.348e-07 au
i 9.540953655488561 5.5437e-06 deg
node 24.25225752880923 2.9637e-05 deg
peri 33.4172308350737 3.8747e-05 deg
M 292.6085748441783 2.4089e-05 deg
tp 2459359.240291775959
(2021-May-24.74029178)
0.00012873 TDB
period 1916.364058791368
5.25
2.5189e-05
6.896e-08
d
yr
n .1878557460668765 2.4692e-09 deg/d
Q 3.361667357671412 2.9457e-08 au
  Orbit Determination Parameters
   # obs. used (total)      700  
   data-arc span      6848 days (18.75 yr)  
   first obs. used      1999-09-05  
   last obs. used      2018-06-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55783  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 08:36:12  

Additional Information
 Earth MOID = 1.6942 au 
 Jupiter MOID = 2.05698 au 
 T_jup = 3.216 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456828.5 (2014-Jun-20.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1145011351802741 4.5557e-08  
q 2.674995827597287 1.3775e-07 au
tp 2457425.118938067533
(2016-Feb-06.61893807)
0.00012493 TDB
node 24.51239000937332 2.9456e-05 deg
peri 30.44893538678833 3.8463e-05 deg
i 9.576266148817835 5.558e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      700  
   data-arc span      6848 days (18.75 yr)  
   first obs. used      1999-09-05  
   last obs. used      2018-06-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55783  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 08:36:12  

Additional Information
 Jupiter MOID = 2.05698 au 
 T_jup = 3.216 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.075427430257038E-15 -6.188633733724475E-15 -1.239783196292218E-12 6.033520256462596E-15 -2.712764870262702E-13 4.528918942324128E-16
q -6.188633733724475E-15 1.897419243222365E-14 3.7318845274176E-12 -1.737267637203572E-14 7.746307469564253E-13 -8.627440226562853E-16
tp -1.239783196292218E-12 3.7318845274176E-12 1.560673303066825E-8 -3.340348878670524E-11 3.110111036576238E-9 -1.363914991495304E-12
node 6.033520256462596E-15 -1.737267637203572E-14 -3.340348878670524E-11 8.676690692516136E-10 -8.616025303055297E-10 -1.879372442329737E-11
peri -2.712764870262702E-13 7.746307469564253E-13 3.110111036576238E-9 -8.616025303055297E-10 1.479395000878675E-9 1.819593143649852E-11
i 4.528918942324128E-16 -8.627440226562853E-16 -1.363914991495304E-12 -1.879372442329737E-11 1.819593143649852E-11 3.089162898615714E-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 14.7   n/a MPO432455  

91824 (1999 TU280)          Discovered 1999-Oct-08 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

Alternate Designations
 1999 TU280 = 2000 XE9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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