Cora»OccDetail

Stellar Occultation by (50000) Quaoar on 2026-06-21 (00:55:42 UT)

Event Details
Occultation UUID [and db] : f0714fc0-344d-11f1-6999-aa955cf74a2a [asteroids] Occultation Date + Time : 2026-06-21 at 00:55:42 UT +/- 0.31 min [1] Object Designation : (50000) Quaoar Star Designation : GDR3 4101955932488319872 Star Coordinates (ICRF) : RA = 18 47 19.9821, DE = -14 47 27.794 [2] Star Magnitudes : G = 14.74 mag, RP = 13.73 mag, BP = 15.8 mag Object Magnitude : V = 18.73 mag Estimated Magnitude Drop : 4.0 mag Estimated Max. Duration : 47.0 sec Speed of the shadow : 24.0 km/s Object Mean Diameter : 1131.0 km (src: astorb) => apparent = 37 mas Apparent Motion : 0.0483 arcs/min @ PA = 267 deg Horizontal Parallax : 0.2110 arcs Dynamical Class : TNO Elongation to Moon & Sun : 112° (sunlit = 41%), Sun = 166° Cross-track uncertainty : 3.0 mas = 90 km = 0.08 path-width (1-sig) RUWE and duplicate source : 0.94 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#50 Note : FP:true Object is a <TNOs are Cool> target ! [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

Occultation UUID [and db] : f0714fc0-344d-11f1-6999-aa955cf74a2a [asteroids] Occultation Date + Time : 2026-06-21 at 00:55:42 UT +/- 0.31 min [1] Object Designation : (50000) Quaoar Star Designation : GDR3 4101955932488319872 Star Coordinates (ICRF) : RA = 18 47 19.9821, DE = -14 47 27.794 [2] Star Magnitudes : G = 14.74 mag, RP = 13.73 mag, BP = 15.8 mag Object Magnitude : V = 18.73 mag Estimated Magnitude Drop : 4.0 mag Estimated Max. Duration : 47.0 sec Speed of the shadow : 24.0 km/s Object Mean Diameter : 1131.0 km (src: astorb) => apparent = 37 mas Apparent Motion : 0.0483 arcs/min @ PA = 267 deg Horizontal Parallax : 0.2110 arcs Dynamical Class : TNO Elongation to Moon & Sun : 112° (sunlit = 41%), Sun = 166° Cross-track uncertainty : 3.0 mas = 90 km = 0.08 path-width (1-sig) RUWE and duplicate source : 0.94 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#50 Note : FP:true Object is a <TNOs are Cool> target ! [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

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Occultation Ground Track
------------------------------------------------------------------------------------------- Time[UT] \| Lat----CENTR----Lon \| Alt Azm Sun \| Lat----EDGE1----Lon \| Lat----EDGE2----Lon hh:mm:ss \| +DD.dddd +DDD.dddd \| deg deg deg \| +DD.dddd +DDD.dddd \| +DD.dddd +DDD.dddd ------------------------------------------------------------------------------------------- 00:52:44 +32.1497 +048.7016 +23 233 -09 +24.6876 +044.7892 +41.8701 +058.1682 00:53:36 +27.7744 +029.5327 +38 218 -24 +21.1171 +028.1502 +35.3214 +032.0051 00:54:28 +25.3519 +015.1577 +47 203 -34 +18.9732 +014.7095 +32.4015 +016.0023 00:55:19 +23.9721 +002.3150 +51 185 -40 +17.7090 +002.4399 +30.8303 +002.2434 00:56:11 +23.4134 -010.1405 +51 167 -43 +17.1692 -009.5287 +30.2423 -010.9785 00:57:03 +23.6738 -023.0450 +46 149 -42 +17.3536 -021.8654 +30.6321 -024.8014 00:57:55 +24.9750 -037.5830 +37 135 -36 +18.4203 -035.4662 +32.3650 -041.0112 00:58:47 +28.3121 -057.4094 +21 121 -24 +20.9539 -052.5341 +38.4279 -070.3263 Longitude measured positiv to the East. Azimuth (Azm) measured from North to East.

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CTU: Cross-track uncertainty (zero means: use the nominal prediction value, see event details below). Offsets and CTU all in mas.