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17919 Licandro (1999 GC8)
Classification: Main-belt Asteroid          SPK-ID: 2017919
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2536962674859198 1.0324e-08  
a 2.236068028397524 4.6962e-09 au
q 1.668785915748472 2.3303e-08 au
i 4.927852126374454 4.3785e-07 deg
node 225.7781215474849 1.0801e-05 deg
peri 97.37360518744798 1.136e-05 deg
M 61.47930860005488 4.5017e-06 deg
tp 2458991.929722513041
(2020-May-22.42972251)
1.5094e-05 TDB
period 1221.310089606933
3.34
3.8475e-06
1.053e-08
d
yr
n .2947654351368394 9.286e-10 deg/d
Q 2.803350141046575 5.8876e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2164  
   data-arc span      24644 days (67.47 yr)  
   first obs. used      1953-09-16  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4693  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:17:44  

Additional Information
 Earth MOID = .663901 au 
 Jupiter MOID = 2.55652 au 
 T_jup = 3.591 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.52   n/a E2021B10  
diameter diameter 3.049 km 0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.897 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.264   0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17919 Licandro           Discovered 1999 Apr. 9 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station.
Javier Licandro (b. 1966), a Uruguayan astronomer at the Isaac Newton Telescope at La Palma, works on the physical properties of minor bodies and transneptunian objects.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050721/MPCPages.arcLast Updated: 2005-07-21

Alternate Designations
 1999 GC8 = 1973 RC = 1996 KV7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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