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JPL Small-Body Database Browser
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17438 Quasimodo (1989 SQ4)
Classification: Main-belt Asteroid          SPK-ID: 2017438
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 .1306583019627973 3.4381e-08  
a 2.323780197351171 8.1021e-09 au
q 2.020159022630493 8.0199e-08 au
i 3.325325086909145 3.564e-06 deg
node 101.2904765792171 6.4816e-05 deg
peri 39.7877830971826 6.6359e-05 deg
M 130.4215778062251 1.3768e-05 deg
tp 2458531.753599667993
(2019-Feb-17.25359967)
4.9184e-05 TDB
period 1293.871052305795
3.54
6.7669e-06
1.853e-08
d
yr
n .2782348359664183 1.4551e-09 deg/d
Q 2.627401372071849 9.1608e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1773  
   data-arc span      14374 days (39.35 yr)  
   first obs. used      1980-01-23  
   last obs. used      2019-06-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47287  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:04:15  

Additional Information
 Earth MOID = 1.03452 au 
 Jupiter MOID = 2.38654 au 
 T_jup = 3.562 
[ 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 MPO337406  
diameter diameter 5.481 km 0.173 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.010 h n/a LCDB (Rev. 2019-August); 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 0.064   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17438 Quasimodo           Discovered 1989 Sept. 26 by E. W. Elst at the European Southern Observatory.
Salvatore Quasimodo (1901-1968), an Italian novelist and poet, won the Nobel Prize for Literature in 1959. One of the foremost poets of the 20th century, he devoted himself to the translation of the Gospel of John, some of Catullus' cantos and several episodes from the Odyssey.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2018-03-31Last Updated: 2018-04-05

[ show close-approach data ]
Alternate Designations
 1989 SQ4 = 1980 BV5 = 1998 HM132 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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