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91588 (1999 TJ)
Classification: Main-belt Asteroid          SPK-ID: 2091588
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06783007944134398 4.3153e-08  
a 2.967065094307091 1.8117e-08 au
q 2.765808833252602 1.3514e-07 au
i 2.220730381307261 4.2795e-06 deg
node 85.25454939878978 0.00012125 deg
peri 46.89097866725479 0.00012808 deg
M 303.6047285035779 3.9474e-05 deg
tp 2459492.934918956184
(2021-Oct-05.43491896)
0.00020458 TDB
period 1866.76237263802
5.11
1.7098e-05
4.681e-08
d
yr
n .1928472553746972 1.7663e-09 deg/d
Q 3.16832135536158 1.9346e-08 au
  Orbit Determination Parameters
   # obs. used (total)      576  
   data-arc span      9597 days (26.28 yr)  
   first obs. used      1994-10-08  
   last obs. used      2021-01-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5131  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 07:58:00  

Additional Information
 Earth MOID = 1.78078 au 
 Jupiter MOID = 1.84908 au 
 T_jup = 3.259 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457569.5 (2016-Jun-30.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06512357737550385 4.3993e-08  
q 2.773873004796072 1.3747e-07 au
tp 2457632.048203041192
(2016-Aug-31.54820304)
0.00021366 TDB
node 85.29502979534743 0.0001214 deg
peri 48.13409135081604 0.00012868 deg
i 2.220111068687538 4.2746e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      576  
   data-arc span      9597 days (26.28 yr)  
   first obs. used      1994-10-08  
   last obs. used      2021-01-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5131  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 07:58:00  

Additional Information
 Jupiter MOID = 1.84908 au 
 T_jup = 3.259 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.93542286244193E-15 -6.007211450377578E-15 2.900050170621508E-12 -5.425592463275339E-15 6.591533250079787E-13 -2.033561132092554E-16
q -6.007211450377578E-15 1.889673384736433E-14 -9.102112839883904E-12 1.441569140871586E-14 -2.065491325907348E-12 8.213416721691927E-16
tp 2.900050170621508E-12 -9.102112839883904E-12 4.565263326889834E-8 1.380003979796419E-11 9.137388255203525E-9 -9.198884569283963E-13
node -5.425592463275339E-15 1.441569140871586E-14 1.380003979796419E-11 1.473846383001492E-8 -1.472480237578508E-8 -9.88573606334531E-11
peri 6.591533250079787E-13 -2.065491325907348E-12 9.137388255203525E-9 -1.472480237578508E-8 1.655835205672425E-8 9.85994564823382E-11
i -2.033561132092554E-16 8.213416721691927E-16 -9.198884569283963E-13 -9.88573606334531E-11 9.85994564823382E-11 1.82723614386398E-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 15.5   n/a MPO412707  

91588 (1999 TJ)          Discovered 1999-Oct-02 by Comba, P. G. at Prescott
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

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Alternate Designations
 1999 TJ = 1997 HF10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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