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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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1704696762917506 5.3197e-08  
a 3.935708407518525 3.9115e-08 au
q 3.264789469310121 2.2011e-07 au
i 5.002810941725815 5.7625e-06 deg
node 35.3108722148707 5.0273e-05 deg
peri 327.8994983315567 5.1949e-05 deg
M 283.5729892626786 1.4992e-05 deg
tp 2459805.948449594685
(2022-Aug-14.44844959)
0.00012476 TDB
period 2851.89018582994
7.81
4.2515e-05
1.164e-07
d
yr
n .1262320694494886 1.8818e-09 deg/d
Q 4.606627345726929 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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57763  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 11:28:44  

Additional Information
 Earth MOID = 2.26265 au 
 Jupiter MOID = .861844 au 
 T_jup = 3.030 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457112.5 (2015-Mar-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1718963899755263 5.317e-08  
q 3.254566681012991 2.1909e-07 au
tp 2456969.069441309869
(2014-Nov-07.56944131)
0.00010005 TDB
node 35.33246732667411 5.0223e-05 deg
peri 328.8575331510874 5.1854e-05 deg
i 5.007965278489801 5.7682e-06 deg
  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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57763  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 11:28:44  

Additional Information
 Jupiter MOID = .861844 au 
 T_jup = 3.030 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.827033769245067E-15 -1.151906401568093E-14 3.340529249300902E-15 -1.315408113055152E-14 4.609336550142189E-14 -6.928419666727278E-16
q -1.151906401568093E-14 4.799883281343065E-14 1.283828288024817E-12 4.820105176416055E-14 -1.895904269328223E-14 3.522737145628027E-15
tp 3.340529249300902E-15 1.283828288024817E-12 1.001087586674129E-8 -9.232759365219563E-12 1.318202899243632E-9 2.554303694333673E-13
node -1.315408113055152E-14 4.820105176416055E-14 -9.232759365219563E-12 2.522335756118484E-9 -2.51393357912028E-9 -6.243741580308754E-11
peri 4.609336550142189E-14 -1.895904269328223E-14 1.318202899243632E-9 -2.51393357912028E-9 2.688881651196197E-9 6.222768237731786E-11
i -6.928419666727278E-16 3.522737145628027E-15 2.554303694333673E-13 -6.243741580308754E-11 6.222768237731786E-11 3.32716893545406E-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 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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