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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1704317900449218 5.3173e-08  
a 3.932528492118192 3.9545e-08 au
q 3.262300621803832 2.1922e-07 au
i 5.004935634818536 5.7647e-06 deg
node 35.33205266058064 5.025e-05 deg
peri 328.1494610127155 5.1916e-05 deg
M 258.0175217533489 1.4748e-05 deg
tp 2459807.417815899449
(2022-Aug-15.91781590)
0.00012469 TDB
period 2848.434542071355
7.80
4.2966e-05
1.176e-07
d
yr
n .1263852107825554 1.9064e-09 deg/d
Q 4.602756362432553 4.6285e-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 = 2.2618 au 
 Jupiter MOID = .864641 au 
 T_jup = 3.030 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457112.5 (2015-Mar-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1718963898382969 5.317e-08  
q 3.254566682226479 2.1909e-07 au
tp 2456969.069441754483
(2014-Nov-07.56944175)
0.00010005 TDB
node 35.33246738877782 5.0223e-05 deg
peri 328.8575331861733 5.1854e-05 deg
i 5.007965275134426 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.      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
 Jupiter MOID = .864641 au 
 T_jup = 3.030 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.827033419819593E-15 -1.151906346794371E-14 3.340384653092305E-15 -1.315408095781578E-14 4.609333079048576E-14 -6.928419858637117E-16
q -1.151906346794371E-14 4.799883518682088E-14 1.283829034979313E-12 4.820105315035596E-14 -1.895883304653328E-14 3.522737710104253E-15
tp 3.340384653092305E-15 1.283829034979313E-12 1.001087564978177E-8 -9.232758504503962E-12 1.318202883580117E-9 2.55430341388935E-13
node -1.315408095781578E-14 4.820105315035596E-14 -9.232758504503962E-12 2.522335744553309E-9 -2.513933567589384E-9 -6.243741527122583E-11
peri 4.609333079048576E-14 -1.895883304653328E-14 1.318202883580117E-9 -2.513933567589384E-9 2.688881642613314E-9 6.222768187760987E-11
i -6.928419858637117E-16 3.522737710104253E-15 2.55430341388935E-13 -6.243741527122583E-11 6.222768187760987E-11 3.327168924383658E-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

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