Cora»Occultation

2024-09-02 / UCAC4 495-000712 / (9271) Trimble

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Andreas Schweizer	O+	VID	M250	CH	GPS	23:23:06	23:23:36.110	23:23:36.950	23:24:06	0.140	0.140	0.84	7.8
2	show	Björn Kattentidt	O+	VID	M279	DE	GPS	23:20:53	23:23:01.180	23:23:02.059	23:25:01	0.04	0.04	0.88	8.2
3	show	Jiri Kubanek	O+	VID	M303	CZ	GPS	23:21:17	23:22:46.92	23:22:47.87	23:24:17	0.14	0.14	0.95	8.8

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

3 observations found in db: sodis

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

JPL#67 : 57cb5d90-ddb5-11f0-547e-45dcba3fe616 [db: observed]

Using prediction 57cb5d90-ddb5-11f0-547e-45dcba3fe616 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:
Ellipse profile fit was not successful. Trying circular fit.

Circular diameter = 11 km

From 3 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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Check Johnston Archive for satellites.

Map with groundtrack and observer stations

Event Details
Occultation UUID [and DB] : 57cb5d90-ddb5-11f0-547e-45dcba3fe616 [observed] Occultation Date + Time : 2024-09-02 at 23:23:14 UT +/- 0.0 min [1] Object Designation : (9271) Trimble Orbit Class : MBA Star Designation : GDR3 2750602476331497856 Star Coordinates (ICRF) : RA = 00 28 28.0864, DE = +08 49 02.574 [2] Star Magnitudes : G = 13.86 mag, RP = 13.23 mag, BP = 14.33 mag Object Magnitude : V = 17.99 mag Estimated Magnitude Drop : 4.2 mag Estimated Max. Duration : 0.8 sec Object Mean Diameter : 7.6 km (src: astorb) Speed of the shadow : 9.3 km/s Elongation to Moon & Sun : 149° (sunlit = 0%), Sun = 151° Cross-track uncertainty : 0.3 mas = 0 km = 0.06 path-width (1-sig) RUWE and duplicate source : 1.0 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#67 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

Occultation UUID [and DB] : 57cb5d90-ddb5-11f0-547e-45dcba3fe616 [observed] Occultation Date + Time : 2024-09-02 at 23:23:14 UT +/- 0.0 min [1] Object Designation : (9271) Trimble Orbit Class : MBA Star Designation : GDR3 2750602476331497856 Star Coordinates (ICRF) : RA = 00 28 28.0864, DE = +08 49 02.574 [2] Star Magnitudes : G = 13.86 mag, RP = 13.23 mag, BP = 14.33 mag Object Magnitude : V = 17.99 mag Estimated Magnitude Drop : 4.2 mag Estimated Max. Duration : 0.8 sec Object Mean Diameter : 7.6 km (src: astorb) Speed of the shadow : 9.3 km/s Elongation to Moon & Sun : 149° (sunlit = 0%), Sun = 151° Cross-track uncertainty : 0.3 mas = 0 km = 0.06 path-width (1-sig) RUWE and duplicate source : 1.0 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#67 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

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