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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .25333244540348 1.128e-08  
a 2.319870632456726 5.2404e-09 au
q 1.732172132116746 2.7682e-08 au
i 8.125180619736039 2.7665e-07 deg
node 115.7838770042944 2.5911e-06 deg
peri 95.87881567000035 4.1205e-06 deg
M 47.2642877821532 5.8961e-06 deg
tp 2459031.056585365246
(2020-Jun-30.55658536)
2.0853e-05 TDB
period 1290.607182100493
3.53
4.3731e-06
1.197e-08
d
yr
n .278938475620515 9.4516e-10 deg/d
Q 2.907569132796706 6.568e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1930  
   data-arc span      23639 days (64.72 yr)  
   first obs. used      1955-11-24  
   last obs. used      2020-08-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48155  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:04:51  

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

[ 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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