Cora»Occultation

2025-11-30 / UCAC4 543-012786 / (13856) 1999 XZ105

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Arnaud Leroy	O+	VID	M250	FR	GPS	22:19:20	22:20:49.1	22:20:50.51	22:22:20	0.200	0.150	1.41	14.5
2	show	Jean Bourgeois	O-	VID	M280	BE	GPS	22:19:30	::	::	22:21:30

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#64 : ca7aece0-ddb8-11f0-547e-e5c8d8bf02b9 [db: observed]

Using prediction ca7aece0-ddb8-11f0-547e-e5c8d8bf02b9 for map and profile fit

Get observations as KML file (reduced site location resolution)

Sky projection (artificial light) for occ. time: 2025-11-30, 22:19 UT (JD = 2461010.430)

DAMIT	Q	P (h)	λ, β	JD0	JD-JD0	φ0	Version	Modified	Vol-equiv D	Cmnt
# 2014	1.5	4.448	174°, 20°	2.450982e6	10028.4	0.0°	None	2018-07-19	not scaled	2018-07-18
# 2015	1.5	4.448	356°, 46°	2.450982e6	10028.4	0.0°	None	2018-07-19	not scaled	2018-07-18

Q: model quality flag (0-5, 5=highest) | P: rotation period | λ,β: ecl. lon. and lat. of spin axis (J2000) | JD: initial time (epoch) | φ0: initial rotation angle for JD0

Image size: 300px. Transparent image background for copy & paste

Map with groundtrack and observer stations

Event Details
Occultation UUID [and DB] : ca7aece0-ddb8-11f0-547e-e5c8d8bf02b9 [observed] Occultation Date + Time : 2025-11-30 at 22:20:19 UT +/- 0.01 min [1] Object Designation : (13856) 1999 XZ105 Orbit Class : MBA Star Designation : GDR3 3407542291469027712 Star Coordinates (ICRF) : RA = 05 09 08.3209, DE = +18 24 17.668 [2] Star Magnitudes : G = 13.95 mag, RP = 13.15 mag, BP = 14.63 mag Object Magnitude : V = 15.96 mag Estimated Magnitude Drop : 2.2 mag Estimated Max. Duration : 0.8 sec Object Mean Diameter : 8.1 km (src: astorb) Speed of the shadow : 10.3 km/s Elongation to Moon & Sun : 66° (sunlit = 78%), Sun = 170° Cross-track uncertainty : 0.4 mas = 0 km = 0.05 path-width (1-sig) RUWE and duplicate source : 1.85 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#64 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

Occultation UUID [and DB] : ca7aece0-ddb8-11f0-547e-e5c8d8bf02b9 [observed] Occultation Date + Time : 2025-11-30 at 22:20:19 UT +/- 0.01 min [1] Object Designation : (13856) 1999 XZ105 Orbit Class : MBA Star Designation : GDR3 3407542291469027712 Star Coordinates (ICRF) : RA = 05 09 08.3209, DE = +18 24 17.668 [2] Star Magnitudes : G = 13.95 mag, RP = 13.15 mag, BP = 14.63 mag Object Magnitude : V = 15.96 mag Estimated Magnitude Drop : 2.2 mag Estimated Max. Duration : 0.8 sec Object Mean Diameter : 8.1 km (src: astorb) Speed of the shadow : 10.3 km/s Elongation to Moon & Sun : 66° (sunlit = 78%), Sun = 170° Cross-track uncertainty : 0.4 mas = 0 km = 0.05 path-width (1-sig) RUWE and duplicate source : 1.85 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#64 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

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