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91761 (1999 TZ191)
Classification: Main-belt Asteroid          SPK-ID: 2091761
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05483872921335647 5.826e-08  
a 3.08838398247836 3.1444e-08 au
q 2.919020929556362 1.9187e-07 au
i 10.44493184134557 8.4975e-06 deg
node 325.5977516331443 2.9618e-05 deg
peri 76.17465069456071 9.1335e-05 deg
M 281.9383197669727 8.5495e-05 deg
tp 2459430.363685789353
(2021-Aug-03.86368579)
0.00047232 TDB
period 1982.418600550352
5.43
3.0275e-05
8.289e-08
d
yr
n .1815963590636499 2.7733e-09 deg/d
Q 3.257747035400358 3.3168e-08 au
  Orbit Determination Parameters
   # obs. used (total)      487  
   data-arc span      9729 days (26.64 yr)  
   first obs. used      1993-12-10  
   last obs. used      2020-07-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57078  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 08:19:40  

Additional Information
 Earth MOID = 1.94791 au 
 Jupiter MOID = 1.9892 au 
 T_jup = 3.198 
[ 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 14.6   n/a MPO264003  

91761 (1999 TZ191)          Discovered 1999-Oct-12 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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