Cora»Occultation

2024-12-27 / TYC 0746-00114-1 / (3475) Fichte

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Michal Rottenborn	O+	VID	M254	CZ	GPS	19:16:08	19:18:06.82	19:18:08.52	19:20:08	0.06	0.03	1.70	21.2
2	show	Jiri Kubanek	O+	VID	M303	CZ	GPS	19:16:37	19:18:06.23	19:18:06.53	19:19:37	0.06	0.06	0.30	3.8
3	show	Jiri Kubanek	O+	VID	M200	CZ	GPS	19:16:36	19:18:06.26	19:18:07.10	19:19:36	0.06	0.06	0.84	10.5
4	show	Karel Halir	O+	VID	M500	CZ	GPS	19:16:37	19:18:06.21	19:18:07.57	19:19:37	0.04	0.04	1.36	17.0
5	show	Zdenek Sikac	O+	VID	T150	CZ	NTP	19:16:00	19:18:01.29	19:18:04.07	19:20:00	0.04	0.04	2.78	34.8

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

5 observations found in db: sodis

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

JPL#69 : e3b22f50-ddb5-11f0-547e-850dff937f27 [db: observed]

Using prediction e3b22f50-ddb5-11f0-547e-850dff937f27 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:
Size = 102 x 37 km
a',b' = 51.1, 18.4 km
X0,Y0 = 1487.0, 56.9 km
Mean diameter = 61 km

From 5 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).

Check SiMDA for size and mass data.

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Map with groundtrack and observer stations

Event Details
Occultation UUID [and DB] : e3b22f50-ddb5-11f0-547e-850dff937f27 [observed] Occultation Date + Time : 2024-12-27 at 19:15:06 UT +/- 0.0 min [1] Object Designation : (3475) Fichte Orbit Class : MBA Star Designation : GDR3 3134385390805400448 Star Coordinates (ICRF) : RA = 06 44 52.7235, DE = +08 42 02.780 [2] Star Magnitudes : G = 11.6 mag, RP = 11.25 mag, BP = 11.81 mag Object Magnitude : V = 15.48 mag Estimated Magnitude Drop : 3.9 mag Estimated Max. Duration : 2.5 sec Object Mean Diameter : 30.8 km (src: astorb) Speed of the shadow : 12.5 km/s Elongation to Moon & Sun : 135° (sunlit = 10%), Sun = 165° Cross-track uncertainty : 0.3 mas = 0 km = 0.01 path-width (1-sig) RUWE and duplicate source : 0.83 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#69 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

Occultation UUID [and DB] : e3b22f50-ddb5-11f0-547e-850dff937f27 [observed] Occultation Date + Time : 2024-12-27 at 19:15:06 UT +/- 0.0 min [1] Object Designation : (3475) Fichte Orbit Class : MBA Star Designation : GDR3 3134385390805400448 Star Coordinates (ICRF) : RA = 06 44 52.7235, DE = +08 42 02.780 [2] Star Magnitudes : G = 11.6 mag, RP = 11.25 mag, BP = 11.81 mag Object Magnitude : V = 15.48 mag Estimated Magnitude Drop : 3.9 mag Estimated Max. Duration : 2.5 sec Object Mean Diameter : 30.8 km (src: astorb) Speed of the shadow : 12.5 km/s Elongation to Moon & Sun : 135° (sunlit = 10%), Sun = 165° Cross-track uncertainty : 0.3 mas = 0 km = 0.01 path-width (1-sig) RUWE and duplicate source : 0.83 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#69 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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