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Campaigns and a database of physical properties of TNOs, Centaurs, Trojans, satellites and rings from observed stellar occultations.

Web page created by Alexandre Crispim and maintained by Rio Group

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Physical properties from detected stellar occultations. Single-chord radii are lower limits.

Note · When using the database, please cite Braga-Ribas et al. 2019, J. Phys.: Conf. Ser. 1365 012024. The “Radius (equatorial)” for single-chord events (1 chord) is the half-length of the observed chord — a lower limit on the object’s radius.
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#Number⇅Name⇅Prov. desig.⇅Size (km)⇅H (Abs. Mag.)⇅Date▼Chords⇅Radius eq. (km)⇅Equiv. R⇅Albedo⇅Shape⇅Kind⇅Class⇅Feature⇅Observed from⇅a (AU)⇅e⇅i (°)⇅Equiv. R ± err⇅Oblateness⇅Oblateness ± err⇅b/a⇅c/a⇅Albedo ± err⇅Density⇅Density ± err⇅Atmosphere (nbar)⇅Atm. gas⇅Object G⇅Δ (au)⇅Star G⇅Position Date (JD)⇅RA position⇅RA ± err⇅DEC position⇅DEC ± err⇅Reference⇅Link⇅DOI⇅Comment⇅Lucky Star⇅
1136108Haumea2003 EL6115950.142025-12-152—7980.51Jacobi—TNO> Hot C.—USA43.350.1928.216————0.021.8850.08———————————————
2136108Haumea2003 EL6115950.142025-12-152—7980.51Jacobi—TNO> Hot C.—USA43.350.1928.216————0.021.8850.08———————————————
3507Elara (Jupiter/7)Jupiter/7——2025-12-134—————Planet Satellite—USA5.2030.04841.305———————————————————————
4507Elara (Jupiter/7)Jupiter/7——2025-12-134—————Planet Satellite—USA5.2030.04841.305———————————————————————
51173Anchises1930 UB——2025-12-062———Undetermined—Trojan—USA5.30.1376.9———————————————————————
61173Anchises1930 UB——2025-12-062———Undetermined—Trojan—USA5.30.1376.9———————————————————————
7694371996 KW21996 KW2——2025-11-261—————Trojan—AUS5.29020.0727630.2996———————————————————link ↗———
8694371996 KW21996 KW2——2025-11-261—————Trojan—AUS5.29020.0727630.2996———————————————————link ↗———
9849222003 VS22003 VS2——2025-11-246—272.50.134Tri-axial—TNO> Plutino—, ID, TW39.720.07214.826.5——0.6930.6670.010—————————————————
105237522014 VU372014 VU37——2025-11-241———Undetermined—TNO> Hot C.—TR40.60.04828.7———————————————————————
11849222003 VS22003 VS2——2025-11-246—272.50.134Tri-axial—TNO> Plutino—, ID, TW39.720.07214.826.5——0.6930.6670.010—————————————————
125237522014 VU372014 VU37——2025-11-241———Undetermined—TNO> Hot C.—TR40.60.04828.7———————————————————————
1390482Orcus2004 DW——2025-11-141—————TNO> Plutino—CL39.360.2220.59———————————————————link ↗———
1490482Orcus2004 DW——2025-11-141—————TNO> Plutino—CL39.360.2220.59———————————————————link ↗———
151172Aneas1930 UA——2025-11-135———Undetermined—Trojan——5.20.10616.7———————————————————————
161172Aneas1930 UA——2025-11-135———Undetermined—Trojan——5.20.10616.7———————————————————————
178405Asbolus1995 GO——2025-11-021———Undetermined—Centaur—USA17.9930.62217.62———————————————————————
188405Asbolus1995 GO——2025-11-021———Undetermined—Centaur—USA17.9930.62217.62———————————————————————
196871702011 QF992011 QF99——2025-10-311———UndeterminedSatelliteTrojanSatellitePL19.20110.179110.797———————————————————link ↗———
206871702011 QF992011 QF99——2025-10-311———UndeterminedSatelliteTrojanSatellitePL19.20110.179110.797———————————————————link ↗———
212241Alcathous1979 WM——2025-10-271———Undetermined—Trojan—USA5.20.06616.6———————————————————————
222241Alcathous1979 WM——2025-10-271———Undetermined—Trojan—USA5.20.06616.6———————————————————————
231867Deiphobus1971 EA——2025-10-245———Undetermined—Trojan—USA5.20.04426.9———————————————————————
241867Deiphobus1971 EA——2025-10-245———Undetermined—Trojan—USA5.20.04426.9———————————————————————
25503Ganymede (Jupiter/3)Jupiter/3——2025-10-1435—2635—Tri-axial—Planet Satellite——5.2030.04841.305100—————20.2/-0.03———————————————
26503Ganymede (Jupiter/3)Jupiter/3——2025-10-1435—2635—Tri-axial—Planet Satellite——5.2030.04841.305100—————20.2/-0.03———————————————
27502Europa (Jupiter/2)Jupiter/2——2025-10-131—1561.2—Maclaurin—Planet Satellite—MX5.2030.04841.3054.5——10.999——————————————————
28502Europa (Jupiter/2)Jupiter/2——2025-10-131—1561.2—Maclaurin—Planet Satellite—MX5.2030.04841.3054.5——10.999——————————————————
29768302000 SA1822000 SA182——2025-10-092———UndeterminedMainTrojan—CZ5.17660.064425.0751——————————18.984.059.369—————Preliminarylink ↗——★ Yes
301454522005 RN432005 RN43——2025-10-041———UndeterminedMainTNO> Hot C.—USA41.5530.0238919.264——————————19.939.634315.7—————Preliminarylink ↗———
31244672000 SS1652000 SS165——2025-10-032—————Trojan—PL5.2550.101716.392———————————————————————
328405Asbolus1995 GO——2025-10-032———UndeterminedMainCentaur—CZ, SI17.9930.62217.62——————————23.425.75215.8—————Preliminarylink ↗——★ Yes
33244672000 SS1652000 SS165——2025-10-032—————Trojan—PL5.2550.101716.392———————————————————————
34506Himalia (Jupiter/6)Jupiter/6——2025-09-251—39.9—Irregular—Planet Satellite—PL5.2030.04841.3051.3——————————————————————
35506Himalia (Jupiter/6)Jupiter/6——2025-09-251—39.9—Irregular—Planet Satellite—PL5.2030.04841.3051.3——————————————————————
365236422010 SS432010 SS43——2025-09-232———UndeterminedMainTNO> Hot C.—ES, USA45.67970.2228834.48——————————21.64516.54—————Preliminarylink ↗———
372207Antenor1977 QH1——2025-09-221———IrregularMainTrojan—PL5.10.0176.8——————————16.44.520813.1—————Preliminarylink ↗——★ Yes
382241Alcathous1979 WM——2025-09-171———UndeterminedMainTrojan—USA5.20.06616.6——————————16.24.696213.1—————Preliminarylink ↗——★ Yes
391867Deiphobus1971 EA——2025-09-123———UndeterminedMainTrojan—USA5.20.04426.9——————————16.14.863812.1—————Preliminarylink ↗——★ Yes
4050000Quaoar2002 LM6010942.792025-08-312—5430.124MaclaurinMainTNO> Hot C.—AUS43.50.04182————0.0061.990.46——18.942.114617.1—————Preliminarylink ↗——★ Yes
4150000Quaoar2002 LM6010942.792025-08-282—5430.124MaclaurinMainTNO> Hot C.Double StarUSA43.50.04182————0.0061.990.46——18.942.065516.3—————Preliminarylink ↗——★ Yes
421199512002 KX142002 KX14——2025-08-192—1820.15SphericalMainTNO> Hot C.—ES38.80.0480.415/-11————0.004/-0.003————20.838.209916.7—————Preliminarylink ↗——★ Yes
43702Umbriel (Uranus/2)Uranus/2——2025-08-022———MaclaurinMainPlanet Satellite—USA19.1910.04720.7699——————————1519.85213.18—————Preliminarylink ↗——★ Yes
441199512002 KX142002 KX14——2025-07-271—1820.15SphericalMainTNO> Hot C.—RSA38.80.0480.415/-11————0.004/-0.003————20.737.925115.4—————Preliminarylink ↗——★ Yes
4550000Quaoar2002 LM6010942.792025-07-041—5430.124MaclaurinMainTNO> Hot C.RingES, AE43.50.04182————0.0061.990.46——18.841.637713.33—————Preliminarylink ↗——★ Yes
4650000Quaoar2002 LM6010942.792025-06-251—5430.124MaclaurinOtherTNO> Hot C.OtherUSA43.50.04182————0.0061.990.46——18.841.643714.9—————Preliminarylink ↗10.3847/2515-5172/adfedahttps://iopscience.iop.org/article/10.3847/2515-5172/adfeda/meta★ Yes
4750000Quaoar2002 LM6010942.792025-06-206—5430.124MaclaurinMainTNO> Hot C.—CZ, FR, SI, ES, TR43.50.04182————0.0061.990.46——18.841.655118.2—————Preliminarylink ↗——★ Yes
4850000Quaoar2002 LM6010942.792025-06-123—5430.124MaclaurinMainTNO> Hot C.RingUSA43.50.04182————0.0061.990.46——18.941.693316.1—————Preliminarylink ↗——★ Yes
49307261Mani2002 MS47963.642025-06-0310—400—MaclaurinMainTNO> Hot C.—GR, IT, ES, TR41.90.14417.73——10.81—————20.445.309617—————Preliminarylink ↗——★ Yes
504703082007 JH432007 JH43——2025-05-223———UndeterminedMainTNO> Plutino—CL39.370.0318.19——————————20.939.55516.7—————Preliminarylink ↗——★ Yes
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