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17465 Inawashiroko (1990 VU3)
Classification: Main-belt Asteroid          SPK-ID: 2017465
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1322332993592165 3.194e-08  
a 2.979608386855561 1.356e-08 au
q 2.585604939063257 9.8127e-08 au
i 1.3170729813498 4.7959e-06 deg
node 144.257752564075 0.00013673 deg
peri 305.3119967268107 0.00013829 deg
M 313.3791500284561 2.2272e-05 deg
tp 2459639.784754876941
(2022-Mar-01.28475488)
0.00011715 TDB
period 1878.612505116417
5.14
1.2824e-05
3.511e-08
d
yr
n .1916307908201063 1.3082e-09 deg/d
Q 3.373611834647865 1.5353e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1437  
   data-arc span      11191 days (30.64 yr)  
   first obs. used      1990-11-11  
   last obs. used      2021-07-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52665  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 10:06:59  

Additional Information
 Earth MOID = 1.60245 au 
 Jupiter MOID = 1.81669 au 
 T_jup = 3.246 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456687.5 (2014-Jan-30.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1315255245564087 3.0689e-08  
q 2.590520375240216 9.4236e-08 au
tp 2455859.022390074374
(2011-Oct-24.52239007)
0.0001041 TDB
node 144.5089576844802 0.00013783 deg
peri 302.1914305356025 0.00013941 deg
i 1.312011559200662 4.7787e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1437  
   data-arc span      11191 days (30.64 yr)  
   first obs. used      1990-11-11  
   last obs. used      2021-07-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52665  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 10:06:59  

Additional Information
 Jupiter MOID = 1.81669 au 
 T_jup = 3.246 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.417893425403709E-16 -2.867506819552038E-15 5.656476013554646E-13 -1.456206509671942E-15 1.371828790638701E-13 2.994364806207714E-17
q -2.867506819552038E-15 8.880400197633635E-15 -1.05697847716718E-12 1.937808382443302E-15 -2.771980224123134E-13 -8.279988037051216E-17
tp 5.656476013554646E-13 -1.05697847716718E-12 1.083773864112076E-8 -2.468599296473544E-11 2.183499282023818E-9 -8.70983909650539E-14
node -1.456206509671942E-15 1.937808382443302E-15 -2.468599296473544E-11 1.899649958975059E-8 -1.899651920894927E-8 1.294849918877505E-10
peri 1.371828790638701E-13 -2.771980224123134E-13 2.183499282023818E-9 -1.899651920894927E-8 1.943439076025374E-8 -1.294798135368477E-10
i 2.994364806207714E-17 -8.279988037051216E-17 -8.70983909650539E-14 1.294849918877505E-10 -1.294798135368477E-10 2.283623345373645E-11

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 14.12   n/a E2021B10  
diameter diameter 7.012 km 0.183 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 25.1984 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.108   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17465 Inawashiroko           Discovered 1990 Nov. 11 by T. Seki at Geisei.
Inawashiroko, one of the largest lakes in Japan, is located in Bandai-Asahi National Park. It is known for the clarity of its water, migrating swans and numerous swimming beaches. The town of Inawashiro on the north shore is the birthplace of bacteriologist Hideyo Noguchi.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20100130/MPCPages.arcLast Updated: 2013-03-29

[ show close-approach data ]
Alternate Designations
 1990 VU3 = 1997 CZ28 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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