Cora»Occultation

2026-10-08 / UCAC4 304-251417 / (1947) Iso-Heikkila

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Carles Schnabel	O+	VID	M400	ES	GPS	18:58:32	19:00:10.54	19:00:12.94	19:02:06	0.100	0.100	2.40	41.5
2	show	Jorge JUAN, Carles Schnabel	O+	VID	M410	ES	GPS	18:58:11	19:00:10.11	19:00:12.41	19:02:03	0.100	0.100	2.30	39.8

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):

JPL77 : 3d201750-d9b4-11f1-43f3-8454b6ff9b30 [db: observed]

Using prediction 3d201750-d9b4-11f1-43f3-8454b6ff9b30 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 = 557.2, 6.7 km
Circular diameter = 41 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] : 3d201750-d9b4-11f1-43f3-8454b6ff9b30 [observed] Occultation Date + Time : 2026-10-08 at 18:58:10 UT +/- 0.01 min [1] Object Designation : (1947) Iso-Heikkila Orbit Class : MBA Star Designation : GDR3 6760945515146637824 Star Coordinates (ICRF) : RA = 19 02 19.0475, DE = -29 21 46.298 [2] Star Magnitudes : G = 12.3 mag, RP = 11.76 mag, BP = 12.67 mag Object Magnitude : V = 17.11 mag Estimated Magnitude Drop : 4.8 mag Estimated Max. Duration : 1.7 sec Object Mean Diameter : 29.4 km (src: astorb) Speed of the shadow : 17.3 km/s Elongation to Moon & Sun : 111° (sunlit = 4%), Sun = 88° Cross-track uncertainty : 0.3 mas = 0 km = 0.02 path-width (1-sig) RUWE and duplicate source : 0.9 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL77 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and DB] : 3d201750-d9b4-11f1-43f3-8454b6ff9b30 [observed]

 Occultation Date + Time   : 2026-10-08 at 18:58:10 UT +/- 0.01 min  [1]
 Object Designation        : (1947) Iso-Heikkila
 Orbit Class               : MBA
 Star Designation          : GDR3 6760945515146637824
 Star Coordinates (ICRF)   : RA = 19 02 19.0475, DE = -29 21 46.298  [2]
 Star Magnitudes           : G = 12.3 mag, RP = 11.76 mag, BP = 12.67 mag
 Object Magnitude          : V = 17.11 mag
 Estimated Magnitude Drop  : 4.8 mag
 Estimated Max. Duration   : 1.7 sec
 Object Mean Diameter      : 29.4 km  (src: astorb)
 Speed of the shadow       : 17.3 km/s
 Elongation to Moon & Sun  : 111° (sunlit = 4%), Sun = 88°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 0.9 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL77
 Note                      : FP:true

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

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