Cora»Occultation

2023-10-17 / UCAC4 460-126067 / (25581) 1999 XD221

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Jiri Kubanek	O-	VID	M303	CZ	GPS	20:05:07			20:08:07

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#62 : 2c91a680-ddb4-11f0-547e-8911b4e9c347 [db: observed]

Using prediction 2c91a680-ddb4-11f0-547e-8911b4e9c347 for map and profile fit

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Event Details
Occultation UUID [and DB] : 2c91a680-ddb4-11f0-547e-8911b4e9c347 [observed] Occultation Date + Time : 2023-10-17 at 20:19:22 UT +/- 0.01 min [1] Object Designation : (25581) 1999 XD221 Orbit Class : MBA Star Designation : GDR3 2693643066728483968 Star Coordinates (ICRF) : RA = 21 46 22.2719, DE = +01 58 02.251 [2] Star Magnitudes : G = 14.15 mag, RP = 13.55 mag, BP = 14.58 mag Object Magnitude : V = 17.91 mag Estimated Magnitude Drop : 3.8 mag Estimated Max. Duration : 1.5 sec Object Mean Diameter : 7.7 km (src: astorb) Speed of the shadow : 5.1 km/s Elongation to Moon & Sun : 90° (sunlit = 10%), Sun = 124° Cross-track uncertainty : 0.4 mas = 0 km = 0.08 path-width (1-sig) RUWE and duplicate source : 0.96 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#62 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

Occultation UUID [and DB] : 2c91a680-ddb4-11f0-547e-8911b4e9c347 [observed] Occultation Date + Time : 2023-10-17 at 20:19:22 UT +/- 0.01 min [1] Object Designation : (25581) 1999 XD221 Orbit Class : MBA Star Designation : GDR3 2693643066728483968 Star Coordinates (ICRF) : RA = 21 46 22.2719, DE = +01 58 02.251 [2] Star Magnitudes : G = 14.15 mag, RP = 13.55 mag, BP = 14.58 mag Object Magnitude : V = 17.91 mag Estimated Magnitude Drop : 3.8 mag Estimated Max. Duration : 1.5 sec Object Mean Diameter : 7.7 km (src: astorb) Speed of the shadow : 5.1 km/s Elongation to Moon & Sun : 90° (sunlit = 10%), Sun = 124° Cross-track uncertainty : 0.4 mas = 0 km = 0.08 path-width (1-sig) RUWE and duplicate source : 0.96 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#62 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

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