2024-09-06 / UCAC4 562-007696 / (395) Delia

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Peter Delincak	O+	VID	M400	SK	NTP	01:28:02	01:29:58.146	01:30:06.233	01:32:12	0.004	0.004	8.09	61.5
2	show	Leszek Benedyktowicz	O+	VID	M200	PL	GPS	01:29:55	01:30:11.905	01:30:18.840	01:30:34	0.025	0.025	6.94	52.7
3	show	Daniel Blazewicz	O+	VID	M350	PL	GPS	01:29:30	01:30:20.634	01:30:27.787	01:31:28	0.010	0.015	7.15	54.3
4	show	Anna Marciniak, Stanislaw Zola	O+	CCD	?500	PL	GPS	00:54:19	01:30:14.500	01:30:18.900	02:14:44	1.1	1.1	4.40	33.4
5	show	Petr Zeleny	O-	VID	M250	CZ	GPS	01:27:50			01:32:12
6	show	Marcin Filipek	O-	VID	M250	PL	GPS	01:30:03			01:30:32

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

6 observations found in db: sodis

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

JPL#91 : 6fc55db0-ddb5-11f0-547e-920dd7ffdada [db: observed]

Using prediction 6fc55db0-ddb5-11f0-547e-920dd7ffdada for map and profile fit

Ellipse and circular profile fits to the timings (chords)

Auto-Fit Result: Size = 61 x 52 km a',b' = 30.3, 26.0 km X0,Y0 = 879.0, 32.0 km Mean diameter = 56 km From 4 chords (VID,CCD) 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: 2024-09-06, 01:29 UT (JD = 2460559.562)

DAMIT	Q	P (h)	λ, β	JD0	JD-JD0	φ0	Version	Modified	Vol-equiv D	Cmnt
# 5295	1.0	19.680	196°, -53°	2.457319e6	3240.6	0.0°	None	2020-10-05	not scaled	2019-10-23
# 5296	1.0	19.680	15°, -50°	2.457319e6	3240.6	0.0°	None	2020-10-05	not scaled	2019-10-23

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] : 6fc55db0-ddb5-11f0-547e-920dd7ffdada [observed] Occultation Date + Time : 2024-09-06 at 01:32:37 UT +/- 0.0 min [1] Object Designation : (395) Delia Orbit Class : MBA Star Designation : GDR3 0064762751001170048 Star Coordinates (ICRF) : RA = 03 43 46.2911, DE = +22 20 52.914 [2] Star Magnitudes : G = 11.57 mag, RP = 10.99 mag, BP = 11.97 mag Object Magnitude : V = 15.82 mag Estimated Magnitude Drop : 4.3 mag Estimated Max. Duration : 6.7 sec Object Mean Diameter : 51.0 km (src: astorb) Speed of the shadow : 7.6 km/s Elongation to Moon & Sun : 138° (sunlit = 8%), Sun = 105° Cross-track uncertainty : 0.4 mas = 0 km = 0.01 path-width (1-sig) RUWE and duplicate source : 1.33 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#91 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

Aladin Sky Atlas

Aladin Lite direct link (has Gaia overlay)