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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2125487490633121 4.7895e-08  
a 3.004690401154972 1.5425e-08 au
q 2.366047215066941 1.4448e-07 au
i 2.789442717318838 4.752e-06 deg
node 319.5279730903397 0.00010042 deg
peri 40.96401868071081 0.00010087 deg
M 346.4349734187836 1.1107e-05 deg
tp 2459468.182999493956
(2021-Sep-10.68299949)
5.8961e-05 TDB
period 1902.383284199234
5.21
1.4649e-05
4.011e-08
d
yr
n .1892363137281949 1.4572e-09 deg/d
Q 3.643333587243002 1.8703e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1046  
   data-arc span      11250 days (30.80 yr)  
   first obs. used      1990-10-20  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57532  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 21:57:23  

Additional Information
 Earth MOID = 1.36292 au 
 Jupiter MOID = 1.82525 au 
 T_jup = 3.215 
[ 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 14.28   n/a MPO636327  
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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1909-May-18 03:01 00:03 Jupiter 1.81924089642346 1.81924045050583 1.81924134234357 1.67622943797168 1.37060671737523 2418444.625945323 2.52594176552926 268.050286272004 53.8092131129202 -75.8746519532008 2325794.4724204 T 23 CATAB v2.0g-lin.ifort 2021-Aug-24 21:57:31 2021-Aug-24 21:57
1955-Oct-05 10:05 00:01 Jupiter 1.93463020838797 1.93462961836274 1.9346307984131 2.36521176486981 2.17223016453248 2435385.920403288 1.41563371900843 74.754492786926 11.3692148339347 -86.1983211071328 1972427.61458137 T 23 CATAB v2.0g-lin.ifort 2021-Aug-24 21:57:31 2021-Aug-24 21:57
1993-Feb-18 16:12 < 00:01 Jupiter 1.8402824574619 1.84028197793996 1.84028293698499 1.55821000741726 1.22779603175455 2449037.174957144 0.563904799530543 136.261373492613 80.4598858334133 -70.376428797023 2019842.37835977 T 23 CATAB v2.0g-lin.ifort 2021-Aug-24 21:57:31 2021-Aug-24 21:57
2039-Jul-07 16:45 < 00:01 Jupiter 1.84961238663213 1.84961193174495 1.84961284151973 1.8580123399463 1.59258216271882 2465977.197875584 0.630786872667615 111.235055888255 30.1902157456675 -75.8196161288236 2628090.99212312 T 23 CATAB v2.0g-lin.ifort 2021-Aug-24 21:57:31 2021-Aug-24 21:57
2076-Nov-24 04:13 00:02 Jupiter 1.91908510894692 1.91908454082448 1.91908567706881 1.7691212020024 1.49901770601623 2479631.675650951 1.52148465418495 81.3486933605648 40.1829279346637 88.9671754481739 1717318.24516263 T 23 CATAB v2.0g-lin.ifort 2021-Aug-24 21:57:31 2021-Aug-24 21:57
2123-Apr-10 04:15 00:03 Jupiter 1.82664599301941 1.8266455407381 1.82664644530342 1.57339959408671 1.2442583640733 2496568.676831878 2.61482522762577 249.073496146445 73.893910616736 -71.7173480473551 2173570.58592469 T 23 CATAB v2.0g-lin.ifort 2021-Aug-24 21:57:31 2021-Aug-24 21:57
2169-Aug-26 18:48 00:04 Jupiter 1.91099917405142 1.9109980135516 1.91100033455374 2.17001450741338 1.95511946777412 2513509.283051062 3.7132413684579 166.302145980264 14.9370436412974 -83.9280055141425 1895614.02365125 T 23 CATAB v2.0g-lin.ifort 2021-Aug-24 21:57:31 2021-Aug-24 21:57

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