Cora»Occultation

2025-10-18 / UCAC4 625-011374 / (34521) 2000 SA191

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Yves Argentin	O+	VID	M305	FR	GPS	21:09:13	21:09:39.54	21:09:41.90	21:10:13	0.040	0.040	2.36	33.5
2	show	Javier Prat, Pedro Martorell	O-	CCD	M310	ES	GPS	21:08:50	::	::	21:10:51

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

2 observations found in db: sodis

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

JPL#50 : 96c502a0-ddb8-11f0-547e-5593efffdc33 [db: observed]

Using prediction 96c502a0-ddb8-11f0-547e-5593efffdc33 for map and profile fit

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Map with groundtrack and observer stations

Event Details
Occultation UUID [and DB] : 96c502a0-ddb8-11f0-547e-5593efffdc33 [observed] Occultation Date + Time : 2025-10-18 at 21:04:12 UT +/- 0.04 min [1] Object Designation : (34521) 2000 SA191 Orbit Class : JTRO Star Designation : GDR3 0221890968429654400 Star Coordinates (ICRF) : RA = 03 26 21.7097, DE = +34 51 46.662 [2] Star Magnitudes : G = 12.79 mag, RP = 12.11 mag, BP = 13.31 mag Object Magnitude : V = 18.77 mag Estimated Magnitude Drop : 6.0 mag Estimated Max. Duration : 1.2 sec Object Mean Diameter : 16.3 km (src: astorb) Speed of the shadow : 14.2 km/s Elongation to Moon & Sun : 117° (sunlit = 6%), Sun = 145° Cross-track uncertainty : 4.7 mas = 14 km = 0.88 path-width (1-sig) RUWE and duplicate source : 1.09 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#50 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

Occultation UUID [and DB] : 96c502a0-ddb8-11f0-547e-5593efffdc33 [observed] Occultation Date + Time : 2025-10-18 at 21:04:12 UT +/- 0.04 min [1] Object Designation : (34521) 2000 SA191 Orbit Class : JTRO Star Designation : GDR3 0221890968429654400 Star Coordinates (ICRF) : RA = 03 26 21.7097, DE = +34 51 46.662 [2] Star Magnitudes : G = 12.79 mag, RP = 12.11 mag, BP = 13.31 mag Object Magnitude : V = 18.77 mag Estimated Magnitude Drop : 6.0 mag Estimated Max. Duration : 1.2 sec Object Mean Diameter : 16.3 km (src: astorb) Speed of the shadow : 14.2 km/s Elongation to Moon & Sun : 117° (sunlit = 6%), Sun = 145° Cross-track uncertainty : 4.7 mas = 14 km = 0.88 path-width (1-sig) RUWE and duplicate source : 1.09 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#50 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

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