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58187 (1991 TD)
Classification: Main-belt Asteroid          SPK-ID: 2058187
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2003659860186708 5.4009e-08  
a 2.643589822315979 1.3119e-08 au
q 2.113904340938715 1.4473e-07 au
i 14.47934007270824 5.6048e-06 deg
node 42.76110678977616 1.5588e-05 deg
peri 318.988229057667 1.7922e-05 deg
M 230.5828630276996 9.3611e-06 deg
tp 2459564.889363992443
(2021-Dec-16.38936399)
4.2308e-05 TDB
period 1569.963420538091
4.30
1.1687e-05
3.2e-08
d
yr
n .2293047056323218 1.707e-09 deg/d
Q 3.173275303693243 1.5748e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1011  
   data-arc span      10493 days (28.73 yr)  
   first obs. used      1991-10-01  
   last obs. used      2020-06-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53745  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:51:59  

Additional Information
 Earth MOID = 1.13487 au 
 Jupiter MOID = 2.34308 au 
 T_jup = 3.321 
[ 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 14.8   n/a MPO381676  
diameter diameter 3.101 km 0.891 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.291   0.242 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

58187 (1991 TD)          Discovered 1991-Oct-01 by McNaught, R. H. at Siding Spring
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 TD = 2000 TX33 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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