Cora»Occultation

2025-10-24 / UCAC4 285-217408 / (227038) 2005 AU54

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Deborah Smith	O-	VID	M200	ES	GPS	19:39:18	::	::	19:41:18

UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

1 observation found in db: sodis

Available (probably) matching predictions (click on the link to switch):

JPL#31 : a01cfa60-ddb8-11f0-547e-5086ff77e6d0 [db: observed]

Using prediction a01cfa60-ddb8-11f0-547e-5086ff77e6d0 for map and profile fit

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Event Details
Occultation UUID [and DB] : a01cfa60-ddb8-11f0-547e-5086ff77e6d0 [observed] Occultation Date + Time : 2025-10-24 at 19:35:26 UT +/- 0.01 min [1] Object Designation : (227038) 2005 AU54 Orbit Class : MBA Star Designation : GDR3 6792732430663967744 Star Coordinates (ICRF) : RA = 20 36 34.9352, DE = -33 01 30.912 [2] Star Magnitudes : G = 12.21 mag, RP = 11.57 mag, BP = 12.7 mag Object Magnitude : V = 20.93 mag Estimated Magnitude Drop : 8.7 mag Estimated Max. Duration : 0.2 sec Object Mean Diameter : 3.5 km (src: astorb) Speed of the shadow : 16.9 km/s Elongation to Moon & Sun : 55° (sunlit = 10%), Sun = 91° Cross-track uncertainty : 1.7 mas = 3 km = 1.10 path-width (1-sig) RUWE and duplicate source : 1.09 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#31 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

Occultation UUID [and DB] : a01cfa60-ddb8-11f0-547e-5086ff77e6d0 [observed] Occultation Date + Time : 2025-10-24 at 19:35:26 UT +/- 0.01 min [1] Object Designation : (227038) 2005 AU54 Orbit Class : MBA Star Designation : GDR3 6792732430663967744 Star Coordinates (ICRF) : RA = 20 36 34.9352, DE = -33 01 30.912 [2] Star Magnitudes : G = 12.21 mag, RP = 11.57 mag, BP = 12.7 mag Object Magnitude : V = 20.93 mag Estimated Magnitude Drop : 8.7 mag Estimated Max. Duration : 0.2 sec Object Mean Diameter : 3.5 km (src: astorb) Speed of the shadow : 16.9 km/s Elongation to Moon & Sun : 55° (sunlit = 10%), Sun = 91° Cross-track uncertainty : 1.7 mas = 3 km = 1.10 path-width (1-sig) RUWE and duplicate source : 1.09 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#31 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

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