Cora»Occultation

2025-11-17 / TYC 4671-00499-1 / (210548) 1999 RY254

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Roland BONINSEGNA	O-	VID	M400	BE	GPS	20:54:09	::	::	20:56:07

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#38 : ba0e36a0-ddb8-11f0-547e-36d57f57f24e [db: observed]

Using prediction ba0e36a0-ddb8-11f0-547e-36d57f57f24e for map and profile fit

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Event Details
Occultation UUID [and DB] : ba0e36a0-ddb8-11f0-547e-36d57f57f24e [observed] Occultation Date + Time : 2025-11-17 at 20:37:29 UT +/- 0.35 min [1] Object Designation : (210548) 1999 RY254 Orbit Class : MBA Star Designation : GDR3 2431525129663692544 Star Coordinates (ICRF) : RA = 00 25 34.8865, DE = -06 25 09.548 [2] Star Magnitudes : G = 10.45 mag, RP = 10.06 mag, BP = 10.69 mag Object Magnitude : V = 19.62 mag Estimated Magnitude Drop : 9.2 mag Estimated Max. Duration : 0.4 sec Object Mean Diameter : 1.90 km (src: astorb) Speed of the shadow : 5.0 km/s Elongation to Moon & Sun : 151° (sunlit = 5%), Sun = 127° Cross-track uncertainty : 17.3 mas = 16 km = 8.82 path-width (1-sig) RUWE and duplicate source : 4.23 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#38 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

Occultation UUID [and DB] : ba0e36a0-ddb8-11f0-547e-36d57f57f24e [observed] Occultation Date + Time : 2025-11-17 at 20:37:29 UT +/- 0.35 min [1] Object Designation : (210548) 1999 RY254 Orbit Class : MBA Star Designation : GDR3 2431525129663692544 Star Coordinates (ICRF) : RA = 00 25 34.8865, DE = -06 25 09.548 [2] Star Magnitudes : G = 10.45 mag, RP = 10.06 mag, BP = 10.69 mag Object Magnitude : V = 19.62 mag Estimated Magnitude Drop : 9.2 mag Estimated Max. Duration : 0.4 sec Object Mean Diameter : 1.90 km (src: astorb) Speed of the shadow : 5.0 km/s Elongation to Moon & Sun : 151° (sunlit = 5%), Sun = 127° Cross-track uncertainty : 17.3 mas = 16 km = 8.82 path-width (1-sig) RUWE and duplicate source : 4.23 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#38 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

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