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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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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .067830079847275 4.3153e-08  
a 2.967065093669805 1.8117e-08 au
q 2.76580883145412 1.3514e-07 au
i 2.220730384899271 4.2795e-06 deg
node 85.25454908491494 0.00012125 deg
peri 46.89097900878321 0.00012808 deg
M 303.6047285364126 3.9474e-05 deg
tp 2459492.934918691705
(2021-Oct-05.43491869)
0.00020458 TDB
period 1866.762372036587
5.11
1.7098e-05
4.681e-08
d
yr
n .1928472554368288 1.7663e-09 deg/d
Q 3.168321355885491 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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51313  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 14:46:39  

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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06512357794825102 4.3993e-08  
q 2.773873002991261 1.3747e-07 au
tp 2457632.048204579404
(2016-Aug-31.54820458)
0.00021366 TDB
node 85.29502959120174 0.0001214 deg
peri 48.13409179070538 0.00012868 deg
i 2.220111067212418 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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51313  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 14:46:39  

Additional Information
 Jupiter MOID = 1.84908 au 
 T_jup = 3.259 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.935423783919177E-15 -6.007213814986713E-15 2.90005196917152E-12 -5.425615729602172E-15 6.591537600049661E-13 -2.033556529389727E-16
q -6.007213814986713E-15 1.889673915632451E-14 -9.102119121811832E-12 1.441582005389651E-14 -2.065492904011777E-12 8.213392995979429E-16
tp 2.90005196917152E-12 -9.102119121811832E-12 4.565263539618349E-8 1.37999421642513E-11 9.137388882604561E-9 -9.198869697165255E-13
node -5.425615729602172E-15 1.441582005389651E-14 1.37999421642513E-11 1.473846372011856E-8 -1.472480228194782E-8 -9.885735066895403E-11
peri 6.591537600049661E-13 -2.065492904011777E-12 9.137388882604561E-9 -1.472480228194782E-8 1.655835209803475E-8 9.859944672455409E-11
i -2.033556529389727E-16 8.213392995979429E-16 -9.198869697165255E-13 -9.885735066895403E-11 9.859944672455409E-11 1.827236153685569E-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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