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97582 Hijikawa (2000 EP15)
Classification: Main-belt Asteroid          SPK-ID: 2097582
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .168525498325677 4.3435e-08  
a 3.156809333733249 1.9706e-08 au
q 2.624806467646705 1.4366e-07 au
i 1.140015255401224 6.2515e-06 deg
node 157.1273528866422 0.00021511 deg
peri 260.666548635972 0.00021597 deg
M 339.8848290325348 1.7772e-05 deg
tp 2459314.970131641765
(2021-Apr-10.47013164)
0.00010116 TDB
period 2048.665032859446
5.61
1.9182e-05
5.252e-08
d
yr
n .1757241883010646 1.6454e-09 deg/d
Q 3.688812199819794 2.3027e-08 au
  Orbit Determination Parameters
   # obs. used (total)      664  
   data-arc span      9861 days (27.00 yr)  
   first obs. used      1994-01-12  
   last obs. used      2021-01-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57825  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:17:43  

Additional Information
 Earth MOID = 1.63658 au 
 Jupiter MOID = 1.66054 au 
 T_jup = 3.184 
[ 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 14.99   n/a MPCxxxxx  
diameter diameter 6.619 km 0.294 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.048   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

97582 Hijikawa           Discovered 2000 Mar. 6 by A. Nakamura at Kuma Kogen.
Ehime prefecture's 103-km-long Hijikawa river has its source near the Tosaka Pass in Seiyo City and flows into the Seto Inland Sea. With more than 470 tributaries, the Hijikawa has supplied its abundant water to the people in the southern part of Ehime, especially for irrigation.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080819/MPCPages.arcLast Updated: 2008-08-25

[ show close-approach data ]
Alternate Designations
 2000 EP15 = 1998 XS82 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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