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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2536591745943101 1.0319e-08  
a 2.236430767272723 4.6968e-09 au
q 1.669139584809004 2.3297e-08 au
i 4.927306436826134 4.3779e-07 deg
node 225.773380419539 1.0802e-05 deg
peri 97.41507670867145 1.1361e-05 deg
M 119.2077134565771 4.5578e-06 deg
tp 2458991.986079621428
(2020-May-22.48607962)
1.5097e-05 TDB
period 1221.607286254438
3.34
3.8483e-06
1.054e-08
d
yr
n .2946937236301149 9.2834e-10 deg/d
Q 2.803721949736441 5.8882e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2169  
   data-arc span      24671 days (67.55 yr)  
   first obs. used      1953-09-16  
   last obs. used      2021-04-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46877  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 17:56:07  

Additional Information
 Earth MOID = .665479 au 
 Jupiter MOID = 2.55579 au 
 T_jup = 3.590 
[ 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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