Cora»Occultation

2023-12-17 / UCAC4 496-050410 / (34633) Megancantwell

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Roland BONINSEGNA	O+	VID	M400	BE	GPS	23:9:30.	23:10:37.51	23:10:37.83	23:11:30	0.08	0.08	0.32	3.0
2	show	Sven Andersson	O+	VID	M360	DE	GPS	23:08:41	23:09:32.50	23:09:33.44	23:10:11	0.13	0.13	0.94	8.9
3	show	Olivier Schreurs	O-	VID	M250	BE	GPS	23:09:28			23:11:28

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#51 : 47f49b30-ddb4-11f0-547e-6630eecfc121 [db: observed]

Using prediction 47f49b30-ddb4-11f0-547e-6630eecfc121 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 = 892.9, 24.5 km
Circular diameter = 9 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] : 47f49b30-ddb4-11f0-547e-6630eecfc121 [observed] Occultation Date + Time : 2023-12-17 at 23:07:04 UT +/- 0.01 min [1] Object Designation : (34633) Megancantwell Orbit Class : MBA Star Designation : GDR3 3098430299721391744 Star Coordinates (ICRF) : RA = 08 12 30.2261, DE = +09 02 26.028 [2] Star Magnitudes : G = 13.52 mag, RP = 12.83 mag, BP = 14.06 mag Object Magnitude : V = 19.28 mag Estimated Magnitude Drop : 5.8 mag Estimated Max. Duration : 0.5 sec Object Mean Diameter : 4.5 km (src: astorb) Speed of the shadow : 9.5 km/s Elongation to Moon & Sun : 148° (sunlit = 30%), Sun = 141° Cross-track uncertainty : 0.7 mas = 1 km = 0.25 path-width (1-sig) RUWE and duplicate source : 0.97 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#51 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

Occultation UUID [and DB] : 47f49b30-ddb4-11f0-547e-6630eecfc121 [observed] Occultation Date + Time : 2023-12-17 at 23:07:04 UT +/- 0.01 min [1] Object Designation : (34633) Megancantwell Orbit Class : MBA Star Designation : GDR3 3098430299721391744 Star Coordinates (ICRF) : RA = 08 12 30.2261, DE = +09 02 26.028 [2] Star Magnitudes : G = 13.52 mag, RP = 12.83 mag, BP = 14.06 mag Object Magnitude : V = 19.28 mag Estimated Magnitude Drop : 5.8 mag Estimated Max. Duration : 0.5 sec Object Mean Diameter : 4.5 km (src: astorb) Speed of the shadow : 9.5 km/s Elongation to Moon & Sun : 148° (sunlit = 30%), Sun = 141° Cross-track uncertainty : 0.7 mas = 1 km = 0.25 path-width (1-sig) RUWE and duplicate source : 0.97 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#51 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

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