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JPL Small-Body Database Browser
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17461 Shigosenger (1990 UD1)
Classification: Main-belt Asteroid          SPK-ID: 2017461
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2130665443542311 6.3383e-08  
a 3.00267995062964 1.85e-08 au
q 2.362909309747249 1.8637e-07 au
i 2.789579001321686 5.2848e-06 deg
node 319.5385366437018 0.00010979 deg
peri 41.30398099223056 0.00011031 deg
M 271.2194466203832 1.391e-05 deg
tp 2459469.180991491334
(2021-Sep-11.68099149)
7.6174e-05 TDB
period 1900.474265072761
5.20
1.7564e-05
4.809e-08
d
yr
n .1894264008811596 1.7507e-09 deg/d
Q 3.64245059151203 2.2442e-08 au
  Orbit Determination Parameters
   # obs. used (total)      915  
   data-arc span      10777 days (29.51 yr)  
   first obs. used      1990-10-20  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58926  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 04:36:36  

Additional Information
 Earth MOID = 1.36072 au 
 Jupiter MOID = 1.8255 au 
 T_jup = 3.216 
[ 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 14.3   n/a MPO439214  
diameter diameter 6.929 km 0.114 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.064   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17461 Shigosenger           Discovered 1990 Oct. 20 by T. Seki at Geisei.
Shigosenger is a team of original characters introduced by Akashi Municipal Planetarium to promote astronomy education for children. The Planetarium is situated on the Japan Standard Time Meridian and "Shigosen" is a Japanese term for the meridian.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2018-05-29Last Updated: 2018-09-17

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Alternate Designations
 1990 UD1 = 2000 PR8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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