Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2130665521102878 6.4372e-08  
a 3.002679943327258 1.8617e-08 au
q 2.362909280711805 1.8934e-07 au
i 2.789572284984559 5.3089e-06 deg
node 319.5383606082125 0.00011027 deg
peri 41.30414291959755 0.0001108 deg
M 271.2194579767405 1.3983e-05 deg
tp 2459469.180929830327
(2021-Sep-11.68092983)
7.6578e-05 TDB
period 1900.47425813996
5.20
1.7675e-05
4.839e-08
d
yr
n .1894264015721742 1.7617e-09 deg/d
Q 3.642450605942712 2.2584e-08 au
  Orbit Determination Parameters
   # obs. used (total)      911  
   data-arc span      10423 days (28.54 yr)  
   first obs. used      1990-10-20  
   last obs. used      2019-05-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58104  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:31:07  

Additional Information
 Earth MOID = 1.36072 au 
 Jupiter MOID = 1.8255 au 
 T_jup = 3.216 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456499.5 (2013-Jul-26.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2136795471130803 6.4154e-08  
q 2.359146807725729 1.8778e-07 au
tp 2455674.446799287464
(2011-Apr-22.94679929)
5.9595e-05 TDB
node 319.5841049115784 0.00011033 deg
peri 41.87034931921514 0.00011085 deg
i 2.789626208901619 5.3096e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      911  
   data-arc span      10423 days (28.54 yr)  
   first obs. used      1990-10-20  
   last obs. used      2019-05-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58104  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:31:07  

Additional Information
 Jupiter MOID = 1.8255 au 
 T_jup = 3.216 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.115694943671821E-15 -1.201238769949813E-14 9.945858476701742E-13 -3.1083858680823E-14 7.622673507434098E-14 -2.006904595774032E-15
q -1.201238769949813E-14 3.526189743891054E-14 -2.805994393944216E-12 9.411119542674666E-14 -1.921781204416114E-13 6.183704634613811E-15
tp 9.945858476701742E-13 -2.805994393944216E-12 3.551579297192707E-9 -1.895317477836596E-11 6.725486714535029E-10 -2.458822062272135E-12
node -3.1083858680823E-14 9.411119542674666E-14 -1.895317477836596E-11 1.217247965077539E-8 -1.215941464253474E-8 1.250105333752134E-10
peri 7.622673507434098E-14 -1.921781204416114E-13 6.725486714535029E-10 -1.215941464253474E-8 1.228720386213235E-8 -1.252086947469456E-10
i -2.006904595774032E-15 6.183704634613811E-15 -2.458822062272135E-12 1.250105333752134E-10 -1.252086947469456E-10 2.819137399995722E-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 14.3   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

[ show close-approach data ]
Alternate Designations
 1990 UD1 = 2000 PR8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Feb-19 13:35 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin