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16525 Shumarinaiko (1991 CU2)
Classification: Main-belt Asteroid          SPK-ID: 2016525
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.

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1391333838809291 3.0666e-08  
a 2.399062973592273 7.5199e-09 au
q 2.065273223932936 7.4175e-08 au
i 2.427413147637749 3.4255e-06 deg
node 7.643116026414713 7.7391e-05 deg
peri 180.07882293766 7.8372e-05 deg
M 190.041592473462 1.3135e-05 deg
tp 2459241.268348795319
5.0767e-05 TDB
period 1357.25327698364
n .2652415773127209 1.2471e-09 deg/d
Q 2.73285272325161 8.5662e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2317  
   data-arc span      25460 days (69.71 yr)  
   first obs. used      1950-03-21  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48227  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 00:11:00  

Additional Information
 Earth MOID = 1.06662 au 
 Jupiter MOID = 2.22547 au 
 T_jup = 3.513 
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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 13.6   n/a MPO347654  
diameter diameter 5.253 km 0.146 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 2.5932 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Behrend, R. (2006) Observatoire de Geneve web site,]
[Warner, B.D.; Coley, D. (2013) CBET, submitted.]
[Warner, B.D.; Coley, D. (2013) Minor Planet Bull. 40, 124-125.]
geometric albedo albedo 0.306   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

16525 Shumarinaiko           Discovered 1991 Feb. 14 by K. Endate and K. Watanabe at Kitami.
Lake Shumarinai is located in the western part of the Nayoro basin. It was created artificially in 1943 by damming the River Uryuu for irrigation and the generation of hydraulic electricity. As one of the prefectural natural parks, the lake is well known for its beautiful scenery.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20051215/MPCPages.arcLast Updated: 2006-03-22

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Alternate Designations
 1991 CU2 = 1996 TE51 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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