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7710 Ishibashi (1994 WT2)
Classification: Outer Main-belt Asteroid          SPK-ID: 2007710
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0581311935341502 3.5424e-08  
a 3.416550571026981 1.8283e-08 au
q 3.2179424085634 1.2298e-07 au
i 6.277476252833241 4.1554e-06 deg
node 41.45908813297605 3.2811e-05 deg
peri 12.14543206368784 4.8126e-05 deg
M 36.54775008581699 3.3829e-05 deg
tp 2458766.326173371215
(2019-Oct-09.82617337)
0.0002168 TDB
period 2306.642061095787
6.32
1.8515e-05
5.069e-08
d
yr
n .1560710289957079 1.2528e-09 deg/d
Q 3.615158733490562 1.9346e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3121  
   data-arc span      16409 days (44.93 yr)  
   first obs. used      1975-12-02  
   last obs. used      2020-11-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40721  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:32:08  

Additional Information
 Earth MOID = 2.22914 au 
 Jupiter MOID = 1.66983 au 
 T_jup = 3.131 
[ 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 12.4   n/a MPO365341  
diameter diameter 17.498 km 0.368 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 11.507 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[McNeill, A.; Mommert, M.; Trilling, D.E.; Llama, J.; Skiff, B. (2019) Ap. J. Suppl. Series 245, id.29.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.069   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

7710 Ishibashi           Discovered 1994 Nov. 30 by T. Kobayashi at Oizumi.
Tadashi Ishibashi (b. 1926), retired sea captain, became interested in stars in 1936 and has observed meteors since 1940. Since 1947 he has collected and studied ancient documents about the stars. Currently he lectures on star topics aboard large passenger ships.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030806/MPCPages.arcLast Updated: 2003-10-02

[ 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
1906-Oct-20 23:15 00:03 Jupiter 1.90036828629535 1.90036750679724 1.90036906579409 3.72326764247964 3.60156800290184 2417504.468526972 3.08169944632906 71.8207641357155 16.7659631442767 -60.9637219736364 4759491.68757599 T 34 CATAB v2.0f-lin.ifort 2020-Dec-18 02:32:16 2020-Dec-18 02:32
1920-Mar-28 21:38 00:03 Jupiter 1.98196611755109 1.98196570915824 1.98196652594418 3.49331511142664 3.36875658154295 2422412.401691023 2.67179955068673 66.9681880170923 14.0141958870511 -80.4358963929687 4606924.96750297 T 34 CATAB v2.0f-lin.ifort 2020-Dec-18 02:32:16 2020-Dec-18 02:32
1933-Aug-27 21:03 00:02 Jupiter 1.9108368492906 1.91083637751728 1.91083732106425 3.2288288940967 3.08849314197536 2427312.376767125 2.24703587258247 98.6140779023924 16.3755321569537 84.6127611206852 3566587.56668314 T 34 CATAB v2.0f-lin.ifort 2020-Dec-18 02:32:16 2020-Dec-18 02:32
1947-Jan-23 08:15 00:02 Jupiter 1.76417538371768 1.76417489485508 1.76417587258038 2.82656923523253 2.65127254816391 2432208.843666724 1.88425938613103 61.7509660114007 12.2057580332666 79.5383112051664 2725530.18368838 T 34 CATAB v2.0f-lin.ifort 2020-Dec-18 02:32:16 2020-Dec-18 02:32
1960-Jul-15 14:39 00:02 Jupiter 1.64040353305604 1.64040310957024 1.64040395654176 2.23016588845492 1.98518001836061 2437131.110472799 1.59691169742211 62.9238063807164 6.61471052240704 79.0832131987576 2823034.49226643 T 34 CATAB v2.0f-lin.ifort 2020-Dec-18 02:32:16 2020-Dec-18 02:32
1974-Feb-12 08:02 00:01 Jupiter 1.58972709360148 1.58972667220016 1.58972751500261 2.37062771820605 2.13407023064059 2442090.834526995 1.21128909346719 63.7112108919271 14.7919018023205 -87.9150973396192 2834217.97907573 T 34 CATAB v2.0f-lin.ifort 2020-Dec-18 02:32:16 2020-Dec-18 02:32
1987-Aug-23 06:42 < 00:01 Jupiter 1.64398218935459 1.64398177152956 1.64398260717961 3.27688135708504 3.11568599957948 2447030.779076170 0.764990649325225 61.031831312774 15.2945226204242 -85.0939281408486 3164972.26076329 T 34 CATAB v2.0f-lin.ifort 2020-Dec-18 02:32:16 2020-Dec-18 02:32
2001-Feb-09 03:10 < 00:01 Jupiter 1.82542133047129 1.82542094590193 1.82542171504065 3.67361130947299 3.54505154414423 2451949.631620809 0.407090492066604 37.7556297592758 14.3449619194214 -77.0591101255025 4281027.00354702 T 34 CATAB v2.0f-lin.ifort 2020-Dec-18 02:32:16 2020-Dec-18 02:32
2014-Jul-23 02:14 < 00:01 Jupiter 1.97535809319165 1.97535770914751 1.9753584772358 3.61458651031417 3.49394430590255 2456861.592842077 0.195901365691412 38.3143255167098 14.2421303598661 -76.7212841571787 4761075.50996351 T 34 CATAB v2.0f-lin.ifort 2020-Dec-18 02:32:16 2020-Dec-18 02:32
2027-Dec-22 15:58 < 00:01 Jupiter 1.96282313633613 1.96282270303808 1.96282356963407 3.4136826822241 3.28483848978103 2461762.165239572 0.440150934662407 44.9578324199571 17.5080675601097 -89.8650115553755 3842507.14214171 T 34 CATAB v2.0f-lin.ifort 2020-Dec-18 02:32:16 2020-Dec-18 02:32
2041-May-16 19:11 < 00:01 Jupiter 1.83248346998503 1.83248300171364 1.83248393825653 3.05732586005656 2.90220404360213 2466656.299434690 0.804519103925541 63.9233350461756 14.5876820599669 80.5438241542039 3175186.47397536 T 34 CATAB v2.0f-lin.ifort 2020-Dec-18 02:32:16 2020-Dec-18 02:32
2054-Oct-23 20:11 00:01 Jupiter 1.69388938090163 1.69388896879783 1.69388979300533 2.46472951290038 2.2527316045685 2471564.340863208 1.25252625748939 53.6440270738032 8.21571002553114 80.2048225250105 2937480.97484891 T 34 CATAB v2.0f-lin.ifort 2020-Dec-18 02:32:16 2020-Dec-18 02:32
2068-May-11 22:18 00:02 Jupiter 1.59480172966678 1.59480132886953 1.59480213046395 2.12278208924977 1.85579485853301 2476513.429504660 1.76233191154005 66.6375896153221 20.8348658054126 -85.7287223699078 3056841.32017303 T 34 CATAB v2.0f-lin.ifort 2020-Dec-18 02:32:16 2020-Dec-18 02:32
2081-Dec-04 19:58 00:02 Jupiter 1.58676343785409 1.58676296934084 1.58676390636733 2.91468459223891 2.72539464040602 2481468.332101536 2.08144202428946 87.9840327441429 14.0382421789567 -88.346237416871 2456711.57365583 T 34 CATAB v2.0f-lin.ifort 2020-Dec-18 02:32:16 2020-Dec-18 02:32
2095-May-31 20:02 00:02 Jupiter 1.74652925633169 1.74652858701762 1.74652992564586 3.54599310756349 3.40648171919712 2486394.334979456 2.39026189012547 50.9628618805048 21.9354457945726 -63.9698836221744 3191130.94738764 T 34 CATAB v2.0f-lin.ifort 2020-Dec-18 02:32:16 2020-Dec-18 02:32
2108-Nov-14 15:09 00:03 Jupiter 1.93310265879736 1.93310218108799 1.93310313650706 3.64261443498722 3.52027061088225 2491309.131341000 2.72981500851043 57.7519563483712 13.2008795973128 -70.4903335627862 5096511.17651446 T 34 CATAB v2.0f-lin.ifort 2020-Dec-18 02:32:16 2020-Dec-18 02:32
2122-Apr-20 14:24 00:03 Jupiter 1.99051806183066 1.9905176177478 1.99051850591374 3.55624056756296 3.43449990857103 2496214.099710943 3.04061818975646 81.9145242002184 17.051584144827 85.3607023511828 4412002.79224048 T 34 CATAB v2.0f-lin.ifort 2020-Dec-18 02:32:16 2020-Dec-18 02:32
2135-Sep-12 18:12 00:03 Jupiter 1.90353501614777 1.90353420890322 1.90353582339514 3.29621041676875 3.15833124300341 2501107.258099631 3.38773962303871 145.357767978478 16.9109223576479 78.5672285825016 3410629.73702089 T 34 CATAB v2.0f-lin.ifort 2020-Dec-18 02:32:16 2020-Dec-18 02:32
2149-Feb-09 18:18 00:04 Jupiter 1.75259623997356 1.75259540054189 1.75259707940494 2.73049263905769 2.54735123646715 2506006.262727510 3.91882487727379 52.2382268922953 21.484554365362 78.2336249643358 1580152.83151545 T 34 CATAB v2.0f-lin.ifort 2020-Dec-18 02:32:16 2020-Dec-18 02:32
2162-Aug-16 19:43 00:05 Jupiter 1.62880659103532 1.62880596707831 1.62880721499344 2.11425660461161 1.85203349918888 2510942.321433522 4.65873365313823 129.558699295903 16.3571239051107 -87.6053976709065 3253831.03094651 T 34 CATAB v2.0f-lin.ifort 2020-Dec-18 02:32:16 2020-Dec-18 02:32
2176-Mar-15 13:29 00:05 Jupiter 1.56271578098338 1.56271538269329 1.56271617927337 2.55462165900299 2.33282076165921 2515902.061638119 5.0017919211668 171.590270354997 16.4164299768952 -79.2071493023178 2345236.87356236 T 34 CATAB v2.0f-lin.ifort 2020-Dec-18 02:32:16 2020-Dec-18 02:32
2189-Sep-19 03:15 00:05 Jupiter 1.65498020048944 1.65497894725582 1.65498145372279 3.30761154151329 3.14907759504136 2520837.635534080 5.19563311370139 53.5643019214865 50.7917010188468 48.4953353218376 1535926.90280074 T 34 CATAB v2.0f-lin.ifort 2020-Dec-18 02:32:16 2020-Dec-18 02:32

Alternate Designations
 1994 WT2 = 1975 XN3 = 1981 UY2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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