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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2531898927929416 3.2317e-08  
a 2.319347870640306 5.4089e-09 au
q 1.732112431923349 7.6051e-08 au
i 8.125169893007167 3.5645e-06 deg
node 115.7840374014189 2.5366e-05 deg
peri 95.84563626908945 2.6404e-05 deg
M 351.49507276429 7.9533e-06 deg
tp 2459030.980028315834
(2020-Jun-30.48002832)
2.8549e-05 TDB
period 1290.170966734212
3.53
4.5132e-06
1.236e-08
d
yr
n .2790327865703426 9.761e-10 deg/d
Q 2.906583309357263 6.7784e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1846  
   data-arc span      23582 days (64.56 yr)  
   first obs. used      1955-11-24  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4825  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 18:11:00  

Additional Information
 Earth MOID = .749512 au 
 Jupiter MOID = 2.10767 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 14.2   n/a PDS3 (MPO 4071)  
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. 2019-August); 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.]
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

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