Cora»Occultation

2026-05-19 / UCAC4 467-043464 / (3134) Kostinsky

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Matej Korec	O+	VID	T200	SK	NTP	21:11:24	21:13:20.4	21:13:23.4	21:15:23	0.300	0.300	3.00	38.7
2	show	Peter Nosal, Paula Libic	O+	VID	M200	SK	NTP	21:11:55	21:13:20.520	21:13:23.820	21:14:56	0.100	0.100	3.30	42.6
3	show	Jiri Kubanek	O-	VID	M303	CZ	GPS	21:11:59	::	::	21:14:00

UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

3 observations found in db: sodis

Available (probably) matching predictions (click on the link to switch):

JPL#68 : b6eb3af0-340b-11f1-6999-d8f0ee1f6aad [db: asteroids]

Using prediction b6eb3af0-340b-11f1-6999-d8f0ee1f6aad 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 = -406.4, 21.9 km
Circular diameter = 87 km

From 2 chords (VID)

You can enter space separated chord numbers (example: 11 4 8) or a method like VIS to ignore all visual timings, or a time source like RAD and NTP (but not GPS).
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] : b6eb3af0-340b-11f1-6999-d8f0ee1f6aad [asteroids] Occultation Date + Time : 2026-05-19 at 21:09:00 UT +/- 0.01 min [1] Object Designation : (3134) Kostinsky Orbit Class : MBA Star Designation : GDR3 3836793864334119552 Star Coordinates (ICRF) : RA = 10 04 44.4567, DE = +03 14 35.764 [2] Star Magnitudes : G = 14.01 mag, RP = 13.54 mag, BP = 14.33 mag Object Magnitude : V = 17.29 mag Estimated Magnitude Drop : 3.3 mag Estimated Max. Duration : 3.9 sec Object Mean Diameter : 50.0 km (src: astorb) Speed of the shadow : 12.9 km/s Elongation to Moon & Sun : 51° (sunlit = 13%), Sun = 93° Cross-track uncertainty : 1.0 mas = 2 km = 0.06 path-width (1-sig) RUWE and duplicate source : 1.0 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#68 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and DB] : b6eb3af0-340b-11f1-6999-d8f0ee1f6aad [asteroids]

 Occultation Date + Time   : 2026-05-19 at 21:09:00 UT +/- 0.01 min  [1]
 Object Designation        : (3134) Kostinsky
 Orbit Class               : MBA
 Star Designation          : GDR3 3836793864334119552
 Star Coordinates (ICRF)   : RA = 10 04 44.4567, DE = +03 14 35.764  [2]
 Star Magnitudes           : G = 14.01 mag, RP = 13.54 mag, BP = 14.33 mag
 Object Magnitude          : V = 17.29 mag
 Estimated Magnitude Drop  : 3.3 mag
 Estimated Max. Duration   : 3.9 sec
 Object Mean Diameter      : 50.0 km  (src: astorb)
 Speed of the shadow       : 12.9 km/s
 Elongation to Moon & Sun  : 51° (sunlit = 13%), Sun = 93°
 Cross-track uncertainty   : 1.0 mas = 2 km = 0.06 path-width (1-sig)
 RUWE and duplicate source : 1.0 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#68
 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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