Cora»Occultation

2025-11-25 / UCAC4 596-025537 / (4293) Masumi

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Simon Kidd	O-	VID	M350	GB	GPS	23:55:01	::	::	23:57:00

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#63 : cd3b4560-ddb8-11f0-547e-4e75ff3d330a [db: observed]

JPL#63 : cd3b4560-ddb8-11f0-547e-77d539ff22e3 [db: observed]

Using prediction cd3b4560-ddb8-11f0-547e-4e75ff3d330a for map and profile fit

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Event Details
Occultation UUID [and DB] : cd3b4560-ddb8-11f0-547e-4e75ff3d330a [observed] Occultation Date + Time : 2025-11-25 at 23:50:43 UT +/- 0.01 min [1] Object Designation : (4293) Masumi Orbit Class : MBA Star Designation : GDR3 3443577749986577024 Star Coordinates (ICRF) : RA = 05 55 29.5066, DE = +29 01 22.283 [2] Star Magnitudes : G = 13.96 mag, RP = 13.14 mag, BP = 14.66 mag Object Magnitude : V = 15.23 mag Estimated Magnitude Drop : 1.6 mag Estimated Max. Duration : 1.6 sec Object Mean Diameter : 11.4 km (src: astorb) Speed of the shadow : 7.0 km/s Elongation to Moon & Sun : 142° (sunlit = 27%), Sun = 154° Cross-track uncertainty : 0.7 mas = 0 km = 0.06 path-width (1-sig) RUWE and duplicate source : 1.04 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#63 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

Occultation UUID [and DB] : cd3b4560-ddb8-11f0-547e-4e75ff3d330a [observed] Occultation Date + Time : 2025-11-25 at 23:50:43 UT +/- 0.01 min [1] Object Designation : (4293) Masumi Orbit Class : MBA Star Designation : GDR3 3443577749986577024 Star Coordinates (ICRF) : RA = 05 55 29.5066, DE = +29 01 22.283 [2] Star Magnitudes : G = 13.96 mag, RP = 13.14 mag, BP = 14.66 mag Object Magnitude : V = 15.23 mag Estimated Magnitude Drop : 1.6 mag Estimated Max. Duration : 1.6 sec Object Mean Diameter : 11.4 km (src: astorb) Speed of the shadow : 7.0 km/s Elongation to Moon & Sun : 142° (sunlit = 27%), Sun = 154° Cross-track uncertainty : 0.7 mas = 0 km = 0.06 path-width (1-sig) RUWE and duplicate source : 1.04 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#63 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

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