2024-11-29 / UCAC4 531-050576 / (911) Agamemnon

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Jean Bourgeois	O+	VID	M280	BE	GPS	03:36:00	03:38:38.8	03:38:52.8	03:40:00	0.8	0.8	14.00	135.8
2	show	Malcolm Jennings	O+	VID	M276	GB	GPS	03:36:0.	03:38:07.302	03:38:21.702	03:40:0.	0.09	0.09	14.40	139.7
3	show	Peter Tickner	O+	VID	M356	GB	GPS	03:36:14	03:38:02.64	03:38:16.40	03:40:15	0.13	0.13	13.76	133.5
4	show	Simon Kidd	O+	VID	M350	GB	GPS	03:37:17	03:38:04.890	03:38:19.600	03:39:30	0.05	0.05	14.71	142.7
5	show	Andrea Manna	O-	VID	M200	CH	GPS	03:36:15			03:43:02
6	show	Stefano Sposetti	O-	VID	M420	CH	GPS	03:37:25			03:43:27
7	show	Karl-Ludwig Bath	O-	CCD	T180	DE	NTP	03:29:59			03:50:09

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

7 observations found in db: sodis

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

JPL#132 : b446c000-ddb5-11f0-547e-e3a64dfb4f38 [db: observed]

Using prediction b446c000-ddb5-11f0-547e-e3a64dfb4f38 for map and profile fit

Ellipse and circular profile fits to the timings (chords)

Auto-Fit Result: Size = 169 x 117 km a',b' = 84.4, 58.5 km X0,Y0 = -1159.5, 2.1 km Mean diameter = 140 km From 4 chords (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.

Sky projection (artificial light) for occ. time: 2024-11-29, 03:38 UT (JD = 2460643.651)

DAMIT	Q	P (h)	λ, β	JD0	JD-JD0	φ0	Version	Modified	Vol-equiv D	Cmnt
# 3870	1.0	6.582	126°, 0°	2.451091e6	9552.7	0.0°	None	2019-09-26	not scaled	2019-05-07

Q: model quality flag (0-5, 5=highest) | P: rotation period | λ,β: ecl. lon. and lat. of spin axis (J2000) | JD: initial time (epoch) | φ0: initial rotation angle for JD0

Map with groundtrack and observer stations

Event Details

Occultation UUID [and DB] : b446c000-ddb5-11f0-547e-e3a64dfb4f38 [observed] Occultation Date + Time : 2024-11-29 at 03:45:07 UT +/- 0.04 min [1] Object Designation : (911) Agamemnon Orbit Class : JTRO Star Designation : GDR3 3889297949742037248 Star Coordinates (ICRF) : RA = 10 30 41.8621, DE = +16 09 03.590 [2] Star Magnitudes : G = 13.84 mag, RP = 13.35 mag, BP = 14.16 mag Object Magnitude : V = 15.64 mag Estimated Magnitude Drop : 2.0 mag Estimated Max. Duration : 17.2 sec Object Mean Diameter : 166.7 km (src: astorb) Speed of the shadow : 9.7 km/s Elongation to Moon & Sun : 71° (sunlit = 4%), Sun = 94° Cross-track uncertainty : 5.7 mas = 20 km = 0.13 path-width (1-sig) RUWE and duplicate source : 1.09 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#132 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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