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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .212548748484278 4.8287e-08  
a 3.004690400396109 1.6985e-08 au
q 2.366047216209192 1.4506e-07 au
i 2.78944248107085 4.7756e-06 deg
node 319.5279854368177 0.00010333 deg
peri 40.96400597845553 0.00010382 deg
M 346.4349740469655 1.2628e-05 deg
tp 2459468.182996147237
(2021-Sep-10.68299615)
6.7086e-05 TDB
period 1902.383283478538
5.21
1.613e-05
4.416e-08
d
yr
n .189236313799885 1.6045e-09 deg/d
Q 3.643333584583027 2.0595e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1007  
   data-arc span      11218 days (30.71 yr)  
   first obs. used      1990-10-20  
   last obs. used      2021-07-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5828  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 10:06:59  

Additional Information
 Earth MOID = 1.36292 au 
 Jupiter MOID = 1.82525 au 
 T_jup = 3.215 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456862.5 (2014-Jul-24.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .213440771119295 4.7942e-08  
q 2.360407382104153 1.4395e-07 au
tp 2457572.442951981697
(2016-Jul-02.94295198)
5.9734e-05 TDB
node 319.5767090961961 0.00010346 deg
peri 41.81587117142879 0.00010396 deg
i 2.789331449547078 4.7729e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1007  
   data-arc span      11218 days (30.71 yr)  
   first obs. used      1990-10-20  
   last obs. used      2021-07-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5828  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 10:06:59  

Additional Information
 Jupiter MOID = 1.82525 au 
 T_jup = 3.215 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.298445615117761E-15 -6.873693104696912E-15 5.665227605028576E-13 -1.378361892462518E-14 6.251629882807437E-14 -7.565923099041525E-16
q -6.873693104696912E-15 2.072072487446188E-14 -1.433264033365728E-12 4.436331983103407E-14 -1.591591009203237E-13 2.542681498272576E-15
tp 5.665227605028576E-13 -1.433264033365728E-12 3.568147628991043E-9 -3.462242328600562E-12 6.376361321467597E-10 -1.001261095923491E-12
node -1.378361892462518E-14 4.436331983103407E-14 -3.462242328600562E-12 1.070401369503261E-8 -1.069129899259983E-8 7.09796579611307E-11
peri 6.251629882807437E-14 -1.591591009203237E-13 6.376361321467597E-10 -1.069129899259983E-8 1.080688408395686E-8 -7.108329280011193E-11
i -7.565923099041525E-16 2.542681498272576E-15 -1.001261095923491E-12 7.09796579611307E-11 -7.108329280011193E-11 2.278031027061859E-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 14.26   n/a E2021B10  
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

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