Cora»Occultation

2023-12-04 / UCAC4 486-005508 / (740) Cantabia

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Andrea Manna	O+	VID	M200	CH	GPS	00:55:14	01:00:54.3	01:01:00.8	01:05:04	0.5	0.3	6.50	85.8
2	show	Stefano Sposetti	O+	VID	M420	CH	GPS	00:58:00	01:00:53.67	01:01:00.67	01:04:00	0.08	0.12	7.00	92.4

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):

JPL#75 : 4542e8b0-ddb4-11f0-547e-f582e6e35b92 [db: observed]

Using prediction 4542e8b0-ddb4-11f0-547e-f582e6e35b92 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 = -97.1, 29.9 km
Circular diameter = 110 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] : 4542e8b0-ddb4-11f0-547e-f582e6e35b92 [observed] Occultation Date + Time : 2023-12-04 at 01:04:22 UT +/- 0.0 min [1] Object Designation : (740) Cantabia Orbit Class : MBA Star Designation : GDR3 3277252087723670528 Star Coordinates (ICRF) : RA = 03 49 26.9167, DE = +07 02 45.255 [2] Star Magnitudes : G = 13.49 mag, RP = 12.97 mag, BP = 13.83 mag Object Magnitude : V = 13.79 mag Estimated Magnitude Drop : 0.9 mag Estimated Max. Duration : 6.9 sec Object Mean Diameter : 90.9 km (src: astorb) Speed of the shadow : 13.2 km/s Elongation to Moon & Sun : 93° (sunlit = 61%), Sun = 161° Cross-track uncertainty : 0.7 mas = 1 km = 0.01 path-width (1-sig) RUWE and duplicate source : 1.01 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#75 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

Occultation UUID [and DB] : 4542e8b0-ddb4-11f0-547e-f582e6e35b92 [observed] Occultation Date + Time : 2023-12-04 at 01:04:22 UT +/- 0.0 min [1] Object Designation : (740) Cantabia Orbit Class : MBA Star Designation : GDR3 3277252087723670528 Star Coordinates (ICRF) : RA = 03 49 26.9167, DE = +07 02 45.255 [2] Star Magnitudes : G = 13.49 mag, RP = 12.97 mag, BP = 13.83 mag Object Magnitude : V = 13.79 mag Estimated Magnitude Drop : 0.9 mag Estimated Max. Duration : 6.9 sec Object Mean Diameter : 90.9 km (src: astorb) Speed of the shadow : 13.2 km/s Elongation to Moon & Sun : 93° (sunlit = 61%), Sun = 161° Cross-track uncertainty : 0.7 mas = 1 km = 0.01 path-width (1-sig) RUWE and duplicate source : 1.01 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#75 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

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