Collaborative Occultation Resources and Archive (CORA)

2024-09-20 / UCAC4 518-147064 / (17365) Thymbraeus

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Carsten Ziolek	O+	VID	M356	CH	GPS	21:07:22	21:07:51.626	21:07:55.168	21:08:22	0.028	0.028	3.54	55.2
2	show	Martin Gutekunst	O+	VID	L280	DE	GPS	21:06:43	21:07:42.012	21:07:45.972	21:08:43	0.024	0.024	3.96	61.8
3	show	Jean-Francois Pittet	O+	VID	M254	DE	GPS	21:05:40	21:07:39.92	21:07:41.49	21:09:39	0.07	0.08	1.57	24.5
4	show	Matteo Poli	O+	VID	L152	DE	PHONE	21:05:39	21:07:39.22	21:07:43.22	21:09:40	0.1	0.1	4.00	62.4
5	show	Wolfgang Beisker	O+	VID	M280	DE	GPS	21:07:13	21:07:39.39	21:07:42.88	21:08:13	0.11	0.08	3.49	54.4
6	show	Jiri Kubanek	O+	VID	M200	CZ	GPS	21:05:55	21:07:24.40	21:07:28.15	21:08:55	0.15	0.15	3.75	58.5
7	show	Jan Manek	O+	VID	M356	CZ	GPS	21:06:06	21:07:20.46	21:07:20.99	21:08:36	0.03	0.03	0.53	8.3
8	show	Jan Manek	O+	VID	M356	CZ	GPS	21:06:06	21:07:21.06	21:07:23.69	21:08:36	0.03	0.03	2.63	41.0
9	show	Zdenek Sikac	O+	VID	T150	CZ	NTP	21:05:03	21:07:20.05	21:07:22.66	21:09:00	0.15	0.15	2.61	40.7
10	show	Daniel Blazewicz, Nikodem Blazewicz	O+	VID	M350	PL	GPS	21:05:30	21:07:06.99	21:07:09.58	21:08:46	0.02	0.02	2.59	40.4
11	show	Marek Zawilski	O+	VID	M200	PL	GPS	21:06:18	21:06:55.9	21:06:59.9	21:07:52	0.2	0.2	4.00	62.4
12	show	Maciej Borkowski, Malgorzata Krawczyk	O+	VID	M200	PL	GPS	21:05:51	21:06:51.40	21:06:51.88	21:07:51	0.08	0.08	0.48	7.5
13	show	Rui Goncalves	O-	VID	M256	PT	GPS	21:07:33			21:11:03
14	show	Andreas Schweizer	O-	VID	M250	CH	GPS	21:06:54			21:08:57
15	show	Manfred Simon	O-	VID	M203	DE	NTP	21:06:45			21:08:45
16	show	Gregor Krannich	O-	VID	M350	DE	GPS	21:05:43			21:09:43
17	show	Karl-Ludwig Bath	O-	CCD	T180	DE	NTP	21:02:33			21:10:33
18	show	Jiri Polak	O-	VID	M300	CZ	GPS	21:05:28			21:09:28
19	show	Jiri Kubanek	O-	VID	M303	CZ	GPS	21:05:56			21:08:55
20	show	Leszek Benedyktowicz	O-	VID	M200	PL	GPS	21:06:20			21:07:40
21	show	Marcin Filipek	O-	VID	M250	PL	GPS	21:06:45			21:07:17
22	show	Zdenek Moravec, Bohuslav Matous	O-	CCD	T600	CZ	GPS	21:06:21			21:08:21
23	show	Vaclav Priban	O-	VID	M200	CZ	GPS	21:06:27			21:08:30
24	show	Anna Marciniak	O-	CCD	M400	PL	NTP	21:05:00			21:08:54
25	show	Daniel Antuszewicz	O-	VID	M200	PL	NTP	21:05:22			21:08:20
26	show	Christian Weber	O-	VID	T203	DE	GPS	21:06:30			21:07:59
27	show	Gintautas Drazdauskas	O-	VID	M2540	LT	GPS	21:02:02			21:14:23
28	show	Donatas Tamonis	O-	VID	M200	LT	NTP	21:05:05			21:07:54

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

28 observations found in db: sodis

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

JPL#50 : f9693480-c356-11ef-5276-bb98fae98e69 [db: observed]

JPL#48 : d0b2f630-8b3d-11ef-78cd-650bdfefeba7 [db: asteroids]

Using prediction f9693480-c356-11ef-5276-bb98fae98e69 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 = 71 x 28 km
a',b' = 35.7, 14.1 km
X0,Y0 = 1846.4, 35.9 km
Mean diameter = 45 km

From 12 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.

Check Johnston Archive for satellites.

Map with groundtrack and observer stations

Event Details
Occultation UUID [and DB] : f9693480-c356-11ef-5276-bb98fae98e69 [observed] Occultation Date + Time : 2024-09-20 at 21:07:32 UT +/- 0.04 min [1] Object Designation : (17365) Thymbraeus Orbit Class : JTRO Star Designation : GDR3 2770120010316172288 Star Coordinates (ICRF) : RA = 23 45 03.3450, DE = +13 29 52.584 [2] Star Magnitudes : G = 13.32 mag, RP = 12.94 mag, BP = 13.55 mag Object Magnitude : V = 17.21 mag Estimated Magnitude Drop : 3.9 mag Estimated Max. Duration : 1.7 sec Object Mean Diameter : 26.1 km (src: astorb) Speed of the shadow : 15.6 km/s Elongation to Moon & Sun : 37° (sunlit = 89%), Sun = 166° Cross-track uncertainty : 4.3 mas = 12 km = 0.46 path-width (1-sig) RUWE and duplicate source : 0.96 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#50 [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and DB] : f9693480-c356-11ef-5276-bb98fae98e69 [observed]

 Occultation Date + Time   : 2024-09-20 at 21:07:32 UT +/- 0.04 min  [1]
 Object Designation        : (17365) Thymbraeus
 Orbit Class               : JTRO
 Star Designation          : GDR3 2770120010316172288
 Star Coordinates (ICRF)   : RA = 23 45 03.3450, DE = +13 29 52.584  [2]
 Star Magnitudes           : G = 13.32 mag, RP = 12.94 mag, BP = 13.55 mag
 Object Magnitude          : V = 17.21 mag
 Estimated Magnitude Drop  : 3.9 mag
 Estimated Max. Duration   : 1.7 sec
 Object Mean Diameter      : 26.1 km  (src: astorb)
 Speed of the shadow       : 15.6 km/s
 Elongation to Moon & Sun  : 37° (sunlit = 89%), Sun = 166°
 Cross-track uncertainty   : 4.3 mas = 12 km = 0.46 path-width (1-sig)
 RUWE and duplicate source : 0.96 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#50

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

More Data and Informations

SiMDA \| 3D Asteroid Catalogue \| Johnston Archive \| Star at CDS (Vizier) \| JPL Small-Body Node \| Minor Planet Center \| Wikipedia

(If error 404: link not valid which means no data available)

Aladin Sky Atlas
23 45 3.345 +13 29 52.58 FoV: 29.96' +– × × Go to:
Aladin Lite direct link (has Gaia overlay)