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19875 Guedes (6791 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2019875
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1473979011768115 4.2893e-08  
a 2.661916790376272 1.3444e-08 au
q 2.269555842367495 1.162e-07 au
i 13.00672194363413 4.8259e-06 deg
node 17.38725704157652 1.804e-05 deg
peri 198.5454159912224 2.3956e-05 deg
M 90.75088603570089 1.6449e-05 deg
tp 2458800.611869626076
(2019-Nov-13.11186963)
7.1641e-05 TDB
period 1586.317591191116
4.34
1.2018e-05
3.29e-08
d
yr
n .2269406845130472 1.7193e-09 deg/d
Q 3.054277738385049 1.5426e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1143  
   data-arc span      21878 days (59.90 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-08-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54136  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:08:23  

Additional Information
 Earth MOID = 1.26661 au 
 Jupiter MOID = 1.92378 au 
 T_jup = 3.333 
[ 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 14.57   n/a E2021B10  
diameter diameter 4.012 km 0.128 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.209   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19875 Guedes           Discovered 1960 Sept. 24 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Leandro Lage dos Santos Guedes (b. 1976), an astronomer at the Rio de Janeiro planetarium, helped to organize the fifth International Workshop on Cometary Astronomy in Aug. 2009. The name was suggested by D. W. E. Green.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20091004/MPCPages.arcLast Updated: 2009-10-06

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Alternate Designations
 6791 P-L = 1995 UY19 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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