Cora»Occultation

2026-10-21 / UCAC4 474-003539 / (1546) Izsak

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Javier De Elías	O+	VID	M203	ES	GPS	22:58:17	22:59:14.62	22:59:17.42	23:00:17	0.100	0.100	2.80	37.8
2	show	Olivier Schreurs	O+	VID	M254	BE	GPS	22:57:02	22:57:41.32	22:57:42.99	22:59:02	0.020	0.015	1.67	22.5

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):

JPL78 : 8e447db0-d9b4-11f1-43f3-f9bc47ebcb16 [db: observed]

JPL78 : 06a12c90-d9b5-11f1-43f3-5262f50f6486 [db: observed]

Using prediction 8e447db0-d9b4-11f1-43f3-f9bc47ebcb16 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 = 2838.7, 42.6 km
Circular diameter = 41 km

From 2 chords (VID)

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If the plot disappears, then there are less than 2 chords left (too much ignored, go back with browser).

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Map with groundtrack and observer stations

Event Details
Occultation UUID [and DB] : 8e447db0-d9b4-11f1-43f3-f9bc47ebcb16 [observed] Occultation Date + Time : 2026-10-21 at 23:00:06 UT +/- 0.01 min [1] Object Designation : (1546) Izsak Orbit Class : MBA Star Designation : GDR3 0005943380039752064 Star Coordinates (ICRF) : RA = 02 39 48.5199, DE = +04 39 19.852 [2] Star Magnitudes : G = 10.98 mag, RP = 10.6 mag, BP = 11.2 mag Object Magnitude : V = 15.08 mag Estimated Magnitude Drop : 4.1 mag Estimated Max. Duration : 1.8 sec Object Mean Diameter : 24.9 km (src: astorb) Speed of the shadow : 13.5 km/s Elongation to Moon & Sun : 64° (sunlit = 80%), Sun = 165° Cross-track uncertainty : 0.4 mas = 0 km = 0.02 path-width (1-sig) RUWE and duplicate source : 1.05 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL78 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and DB] : 8e447db0-d9b4-11f1-43f3-f9bc47ebcb16 [observed]

 Occultation Date + Time   : 2026-10-21 at 23:00:06 UT +/- 0.01 min  [1]
 Object Designation        : (1546) Izsak
 Orbit Class               : MBA
 Star Designation          : GDR3 0005943380039752064
 Star Coordinates (ICRF)   : RA = 02 39 48.5199, DE = +04 39 19.852  [2]
 Star Magnitudes           : G = 10.98 mag, RP = 10.6 mag, BP = 11.2 mag
 Object Magnitude          : V = 15.08 mag
 Estimated Magnitude Drop  : 4.1 mag
 Estimated Max. Duration   : 1.8 sec
 Object Mean Diameter      : 24.9 km  (src: astorb)
 Speed of the shadow       : 13.5 km/s
 Elongation to Moon & Sun  : 64° (sunlit = 80%), Sun = 165°
 Cross-track uncertainty   : 0.4 mas = 0 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 1.05 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL78
 Note                      : FP:true

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

More Data and Informations

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