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91631 (1999 TF65)
Classification: Main-belt Asteroid          SPK-ID: 2091631
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09566440573814901 3.8003e-08  
a 2.959576794310341 1.677e-08 au
q 2.676450639046226 1.0982e-07 au
i 1.244047818522778 4.3108e-06 deg
node 343.7778554448414 0.00016706 deg
peri 275.0933230136045 0.00016866 deg
M 184.4338761417841 2.3589e-05 deg
tp 2460303.445242769638
(2023-Dec-24.94524277)
0.00012377 TDB
period 1859.699811227511
5.09
1.5807e-05
4.328e-08
d
yr
n .1935796292641332 1.6454e-09 deg/d
Q 3.242702949574456 1.8375e-08 au
  Orbit Determination Parameters
   # obs. used (total)      833  
   data-arc span      9650 days (26.42 yr)  
   first obs. used      1994-09-12  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53035  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 18:17:47  

Additional Information
 Earth MOID = 1.66164 au 
 Jupiter MOID = 1.80371 au 
 T_jup = 3.259 
[ 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 15.14   n/a MPCxxxxx  

91631 (1999 TF65)          Discovered 1999-Oct-08 by Spacewatch at Kitt Peak
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 TF65 = 1997 CE16 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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