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58188 (1991 TA9)
Classification: Outer Main-belt Asteroid          SPK-ID: 2058188
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1704696764750992 5.3197e-08  
a 3.935708409459946 3.9115e-08 au
q 3.264789470198982 2.2011e-07 au
i 5.002810935954344 5.7625e-06 deg
node 35.31087229975271 5.0273e-05 deg
peri 327.8994983779148 5.1949e-05 deg
M 283.5729890414464 1.4992e-05 deg
tp 2459805.948451795255
(2022-Aug-14.44845180)
0.00012476 TDB
period 2851.890187940126
7.81
4.2515e-05
1.164e-07
d
yr
n .1262320693560863 1.8818e-09 deg/d
Q 4.606627348720911 4.5783e-08 au
  Orbit Determination Parameters
   # obs. used (total)      566  
   data-arc span      10514 days (28.79 yr)  
   first obs. used      1991-10-01  
   last obs. used      2020-07-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57767  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:51:59  

Additional Information
 Earth MOID = 2.26265 au 
 Jupiter MOID = .861844 au 
 T_jup = 3.030 
[ 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 14.14   n/a E2021B10  
diameter diameter 9.118 km 1.070 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
geometric albedo albedo 0.053   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  

58188 (1991 TA9)          Discovered 1991-Oct-01 by Spacewatch at Kitt Peak
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1991 TA9 = 1999 VF150 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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