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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 ]

[ 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 
[ 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

[ 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 03:02 00:03 Jupiter 1.81924086221105 1.81924029358563 1.81924143083679 1.67622833121961 1.37060535557057 2418444.626518113 3.25170549203087 306.68920046136 64.0651214306166 -77.2901942454532 1780682.61034985 T 17 CATAB v2.0e-lin.ifort 2019-May-30 02:31:17 2019-May-30 02:31
1955-Oct-05 10:06 00:02 Jupiter 1.93462991419094 1.93462923802145 1.93463059036031 2.36521019993963 2.17222842880977 2435385.920716656 1.81538686570577 83.2700408965737 12.9656783292195 -86.7630080091828 1764455.66372059 T 17 CATAB v2.0e-lin.ifort 2019-May-30 02:31:17 2019-May-30 02:31
1993-Feb-18 16:12 < 00:01 Jupiter 1.84028256898699 1.84028189565891 1.84028324231684 1.55820976919164 1.22779575006689 2449037.175126077 0.660604570425104 173.952185287776 92.629720751675 -63.1215133297557 1645695.23208986 T 17 CATAB v2.0e-lin.ifort 2019-May-30 02:31:17 2019-May-30 02:31
2039-Jul-07 16:45 < 00:01 Jupiter 1.84961233137989 1.84961169029986 1.84961297246086 1.85801166812921 1.59258136875395 2465977.197798379 0.87008784207591 136.927693524157 33.8155793518338 -73.7210008016922 2177636.5850239 T 17 CATAB v2.0e-lin.ifort 2019-May-30 02:31:17 2019-May-30 02:31
2076-Nov-24 04:13 00:02 Jupiter 1.91908515108553 1.91908456845599 1.91908573371453 1.76912125538594 1.49901777385739 2479631.675357006 2.0857920613569 94.3602772330491 42.1203773250292 -88.9453430338847 1675981.8956662 T 17 CATAB v2.0e-lin.ifort 2019-May-30 02:31:17 2019-May-30 02:31
2123-Apr-10 04:14 00:04 Jupiter 1.82664599751776 1.82664538486066 1.82664661018555 1.5733993538916 1.24425805919882 2496568.676270017 3.50035033289342 372.492875181648 82.332610115642 -69.6269734038489 1934391.18620061 T 17 CATAB v2.0e-lin.ifort 2019-May-30 02:31:17 2019-May-30 02:31
2169-Aug-26 18:47 00:05 Jupiter 1.91099929692031 1.91099768651237 1.91100090733216 2.17001503436152 1.95512006596498 2513509.282335000 4.91956981483349 211.640489588125 16.8962785574493 -83.260778705887 1551844.28103468 T 17 CATAB v2.0e-lin.ifort 2019-May-30 02:31:17 2019-May-30 02:31

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