Cora»Occultation

2026-09-28 / TYC 1159-00337-1 / (1506) Xosa

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Alberto Ossola	O+	VID	M230	CH	GPS	18:30:09	18:31:27.21	18:31:27.93	18:32:21	0.040	0.040	0.72	6.8
2	show	Stefano Sposetti	O+	VID	M420	CH	GPS	18:30:55	18:31:24.206	18:31:25.346	18:31:55	0.010	0.010	1.14	10.7

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):

JPL71 : 7f2c1ec0-d9b2-11f1-43f3-59f1dff52b58 [db: observed]

Using prediction 7f2c1ec0-d9b2-11f1-43f3-59f1dff52b58 for map and profile fit

Get observations as KML file (reduced site location resolution)

Ellipse and circular profile fits to the timings (chords)

Auto-Fit Result:
X0,Y0 = 4027.1, 35.7 km
Circular diameter = 11 km

From 2 chords (VID)

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Map with groundtrack and observer stations

Event Details
Occultation UUID [and DB] : 7f2c1ec0-d9b2-11f1-43f3-59f1dff52b58 [observed] Occultation Date + Time : 2026-09-28 at 18:33:23 UT +/- 0.01 min [1] Object Designation : (1506) Xosa Orbit Class : MBA Star Designation : GDR3 2815890514716004096 Star Coordinates (ICRF) : RA = 22 58 27.7221, DE = +13 33 40.426 [2] Star Magnitudes : G = 10.49 mag, RP = 10.03 mag, BP = 10.8 mag Object Magnitude : V = 15.12 mag Estimated Magnitude Drop : 4.6 mag Estimated Max. Duration : 1.4 sec Object Mean Diameter : 12.9 km (src: astorb) Speed of the shadow : 9.4 km/s Elongation to Moon & Sun : 42° (sunlit = 95%), Sun = 157° Cross-track uncertainty : 1.0 mas = 0 km = 0.07 path-width (1-sig) RUWE and duplicate source : 1.09 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL71 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and DB] : 7f2c1ec0-d9b2-11f1-43f3-59f1dff52b58 [observed]

 Occultation Date + Time   : 2026-09-28 at 18:33:23 UT +/- 0.01 min  [1]
 Object Designation        : (1506) Xosa
 Orbit Class               : MBA
 Star Designation          : GDR3 2815890514716004096
 Star Coordinates (ICRF)   : RA = 22 58 27.7221, DE = +13 33 40.426  [2]
 Star Magnitudes           : G = 10.49 mag, RP = 10.03 mag, BP = 10.8 mag
 Object Magnitude          : V = 15.12 mag
 Estimated Magnitude Drop  : 4.6 mag
 Estimated Max. Duration   : 1.4 sec
 Object Mean Diameter      : 12.9 km  (src: astorb)
 Speed of the shadow       : 9.4 km/s
 Elongation to Moon & Sun  : 42° (sunlit = 95%), Sun = 157°
 Cross-track uncertainty   : 1.0 mas = 0 km = 0.07 path-width (1-sig)
 RUWE and duplicate source : 1.09 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL71
 Note                      : FP:true

 
 [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

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