2023-09-13 / UCAC4 521-014751 / (319) Leona

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Jesús Delgado	O+	CCD	M280	ES	GPS	03:40:23	03:43:19.46	03:43:21.81	03:46:20	0.15	0.15	2.35	50.5
2	show	Ferran Casarramona, Eric Smith, +1	O+	VID	M235	ES	GPS	03:42:03	3:43:28.63	3:43:31.33	03:45:02	0.0148	0.0148	2.70	58.1
3	show	Antoni Selva	O+	VID	M280	ES	GPS	03:41:27	03:43:29.000	03:43:31.800	03:45:26	0.04	0.04	2.80	60.2
4	show	Carles Schnabel, Carlos Perello	O+	VID	M200	ES	GPS	03:41:31	03:43:28.73	03:43:31.21	03:45:30	0.10	0.06	2.48	53.3
5	show	Rui Goncalves	O+	VID	M256	PT	GPS	03:42:00	03:43:14.35	03:43:15.79	03:44:02	0.04	0.04	1.44	31.0

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#84 : 7db9b330-ddb0-11f0-547e-1b9eeff7be76 [db: observed]

JPL#69 (23-09-14) : 49ba1552-c546-471f-a53b-75a22648b5e5 [db: special]

Using prediction 7db9b330-ddb0-11f0-547e-1b9eeff7be76 for map and profile fit

Ellipse and circular profile fits to the timings (chords)

Auto-Fit Result: Size = 81 x 53 km a',b' = 40.6, 26.6 km X0,Y0 = -489.6, 33.9 km Mean diameter = 66 km From 5 chords (CCD,VID) Chords to ignore: Fill: Grid: Show (close) miss chords: 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] : 7db9b330-ddb0-11f0-547e-1b9eeff7be76 [observed] Occultation Date + Time : 2023-09-13 at 03:46:30 UT +/- 0.0 min [1] Object Designation : (319) Leona Orbit Class : MBA Star Designation : GDR3 3347400001862704896 Star Coordinates (ICRF) : RA = 05 42 12.5290, DE = +14 00 04.108 [2] Star Magnitudes : G = 11.89 mag, RP = 11.33 mag, BP = 12.27 mag Object Magnitude : V = 15.46 mag Estimated Magnitude Drop : 3.6 mag Estimated Max. Duration : 3.2 sec Object Mean Diameter : 68.2 km (src: astorb) Speed of the shadow : 21.5 km/s Elongation to Moon & Sun : 65° (sunlit = 3%), Sun = 85° Cross-track uncertainty : 0.3 mas = 0 km = 0.01 path-width (1-sig) RUWE and duplicate source : 1.16 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#84 Note : FP:true [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

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