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JPL Small-Body Database Browser
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6657 Otukyo (1992 WY)
Classification: Main-belt Asteroid          SPK-ID: 2006657
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2368958771070314 4.685e-08  
a 2.279256585250941 7.6969e-09 au
q 1.739310097335942 1.0447e-07 au
i 5.071849337026855 4.8501e-06 deg
node 233.5203583455788 4.725e-05 deg
peri 113.2006287036266 4.8155e-05 deg
M 294.3865550371351 1.1287e-05 deg
tp 2458829.575474056747
(2019-Dec-12.07547406)
4.0116e-05 TDB
period 1256.863905059438
3.44
6.3665e-06
1.743e-08
d
yr
n .2864271927539961 1.4509e-09 deg/d
Q 2.81920307316594 9.5203e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1190  
   data-arc span      14474 days (39.63 yr)  
   first obs. used      1978-09-30  
   last obs. used      2018-05-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55249  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-03 16:31:24  

Additional Information
 Earth MOID = .739594 au 
 Jupiter MOID = 2.62964 au 
 T_jup = 3.564 
[ 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 14.8   n/a MPO324369  
diameter diameter 2.707 km 0.200 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.348   0.067 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

6657 Otukyo           Discovered 1992 Nov. 17 by A. Sugie at Dynic Astronomical Observatory.
The palace of emperor Tenchi was moved to Otukyo (modern Otsu city, Shiga prefecture) in the seventh century.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010509/MPCPages.arcLast Updated: 2009-05-11

[ 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
1980-Nov-16 10:02 < 00:01 Amphi 0.0216947558646614 0.0216937562414215 0.0216957555981742 4.8074710260324 4.80747097091337 2444559.917885628 0.3646955235017 120.825841835462 35.5638441836225 72.4034707985555 87332.6554997004 T 19 CATAB v2.0e-lin.ifort 2018-Oct-03 16:31:29 2018-Dec-17 15:41
2021-Apr-16 23:15 < 00:01 Eunom 0.0466709075186269 0.0466696596114258 0.0466721554291037 3.62062333019082 3.62062324711698 2459321.468472117 0.631986378028229 65.698187465077 24.9445858564923 -20.4966114022379 139514.373430337 T 19 CATAB v2.0e-lin.ifort 2018-Oct-03 16:31:29 2018-Dec-17 15:41
2038-Jun-25 01:39 < 00:01 Eunom 0.0381769771931039 0.0381747816067075 0.0381791727996114 3.58500612359595 3.58500602103018 2465599.569082110 0.877070302626399 118.163076635305 24.1608934587178 -22.769731056284 101629.428181067 T 19 CATAB v2.0e-lin.ifort 2018-Oct-03 16:31:29 2018-Dec-17 15:41
2055-Aug-31 23:39 00:01 Eunom 0.0273487142781915 0.0273455454022008 0.0273518832567484 3.54684819888208 3.5468480541668 2471876.485383746 1.22056924409867 178.963054788925 23.5877069422204 -28.3989250649608 84794.3327413837 T 19 CATAB v2.0e-lin.ifort 2018-Oct-03 16:31:29 2018-Dec-17 15:41
2072-Nov-06 22:03 00:02 Eunom 0.0220714840360076 0.0220684618315018 0.0220745068717686 3.52979074997624 3.52979056979341 2478153.419075622 1.66941992399244 240.880070076282 22.728580398888 -51.6451064654573 114081.459713185 T 19 CATAB v2.0e-lin.ifort 2018-Oct-03 16:31:29 2018-Dec-17 15:41
2090-Jan-14 05:10 00:02 Eunom 0.0142876922785099 0.0142856119016051 0.0142897748754594 3.49322142778778 3.49322114652925 2484430.715537502 2.05456917622423 305.130518808513 21.9574651471553 -70.5558188081624 91691.5990449685 T 19 CATAB v2.0e-lin.ifort 2018-Oct-03 16:31:29 2018-Dec-17 15:41
2107-Mar-25 00:10 00:02 Eunom 0.012667646956863 0.0126655086616603 0.0126697890609313 3.46412163574035 3.46412131584729 2490708.507186956 2.47425775278439 368.965866995262 21.6119309034777 73.5416422542876 83984.3367247874 T 19 CATAB v2.0e-lin.ifort 2018-Oct-03 16:31:29 2018-Dec-17 15:41
2124-May-30 23:18 00:03 Eunom 0.020519917353873 0.0205144828449357 0.0205253540973297 3.45610522694429 3.45610502900531 2496985.470751374 2.99408661173167 433.175381538729 20.9208356278773 51.4128274998137 114615.147241069 T 19 CATAB v2.0e-lin.ifort 2018-Oct-03 16:31:29 2018-Dec-17 15:41
2141-Aug-10 17:18 00:03 Eunom 0.0179411792876115 0.0179336257108236 0.0179487353039849 3.43932156142855 3.43932133393445 2503266.220990300 3.33164518013618 500.376429103361 20.7038637223026 41.2948404053495 85520.9757722982 T 19 CATAB v2.0e-lin.ifort 2018-Oct-03 16:31:29 2018-Dec-17 15:41
2158-Oct-19 12:25 00:04 Eunom 0.0236798076160987 0.0236705279280494 0.0236890891164092 3.43134886964689 3.43134869688384 2509545.017550413 3.83064883591341 565.833053392397 20.5226174799685 35.269346749553 99655.4152267674 T 19 CATAB v2.0e-lin.ifort 2018-Oct-03 16:31:29 2018-Dec-17 15:41
2175-Dec-28 21:05 00:04 Eunom 0.0283211283074995 0.0283119898602427 0.0283302694884445 3.4514797839708 3.451479640363 2515824.378537873 4.44508708893069 632.046765335934 20.2589636692139 43.9679933829277 145064.366034688 T 19 CATAB v2.0e-lin.ifort 2018-Oct-03 16:31:29 2018-Dec-17 15:41
2193-Mar-07 17:35 00:05 Eunom 0.0328443240426295 0.0328323030026957 0.0328563467260592 3.4323070223801 3.43230689785772 2522103.232391059 4.79557689348921 701.663276452512 20.1248783887137 31.4581817430916 127370.729907518 T 19 CATAB v2.0e-lin.ifort 2018-Oct-03 16:31:29 2018-Dec-17 15:41

Alternate Designations
 1992 WY = 1978 TB1 = 1985 VR1 = 1991 GW9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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