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17509 Ikumadan (1992 JR)
Classification: Main-belt Asteroid          SPK-ID: 2017509
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2533324460241378 1.128e-08  
a 2.319870630685438 5.2405e-09 au
q 1.732172129354337 2.7682e-08 au
i 8.125180621613517 2.7665e-07 deg
node 115.7838770642217 2.5911e-06 deg
peri 95.87881579051422 4.1205e-06 deg
M 47.26428798196682 5.8962e-06 deg
tp 2459031.056584842972
(2020-Jun-30.55658484)
2.0854e-05 TDB
period 1290.607180622369
3.53
4.3731e-06
1.197e-08
d
yr
n .2789384759399815 9.4516e-10 deg/d
Q 2.907569132016539 6.5681e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1924  
   data-arc span      23639 days (64.72 yr)  
   first obs. used      1955-11-24  
   last obs. used      2020-08-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48235  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-17 01:34:28  

Additional Information
 Earth MOID = .74862 au 
 Jupiter MOID = 2.10564 au 
 T_jup = 3.522 
[ 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 14.34   n/a E2021B10  
diameter diameter 3.535 km 0.116 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.788 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Pray, D.P.; Galad, A.; Gajdos, S.; Vilagi, J.; et al. (2006) Minor Planet Bull. 33, 92-95.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
[Pravec, P.; Wolf, M.; Sarounova, L. (2020) http://www.asu.cas.cz/~ppravec/neo.htm]
geometric albedo albedo 0.246   0.052 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17509 Ikumadan           Discovered 1992 May 4 by T. Seki at Geisei.
Conductor Ikuma Dan (1924-2001), grandson of financier Takuma Dan, was a leading member of the Art Academy of Japan. He composed symphonies, songs and operas, including the celebrated Yuzuru ("The Evening Crane"). The name was suggested by K. Tomita, who was a classmate at Aoyama Gakuin High School.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010902/MPCPages.arcLast Updated: 2009-05-11

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Alternate Designations
 1992 JR = 1999 GR3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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