2024-11-01 / UCAC4 560-005060 / (2423) Ibarruri

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Marian Urbanik	O+	VID	T400	SK	GPS	21:01:03	21:02:06.28	21:02:07.08	21:02:31	0.05	0.05	0.80	4.8
2	show	Leszek Benedyktowicz	O+	VID	M200	PL	GPS	21:01:25	21:01:48.510	21:01:49.110	21:02:14	0.03	0.03	0.60	3.6
3	show	Marcin Filipek	O-	VID	M250	PL	GPS	21:01:32			21:02:02

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

3 observations found in db: sodis

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

JPL#62 : 9d5667b0-ddb5-11f0-547e-8c8ffd97e267 [db: observed]

Using prediction 9d5667b0-ddb5-11f0-547e-8c8ffd97e267 for map and profile fit

Ellipse and circular profile fits to the timings (chords)

Auto-Fit Result: X0,Y0 = 1811.0, 36.4 km Circular diameter = 6 km From 2 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: 2024-11-01, 21:02 UT (JD = 2460616.376)

DAMIT	Q	P (h)	λ, β	JD0	JD-JD0	φ0	Version	Modified	Vol-equiv D	Cmnt
# 4907	1.0	140.140	327°, -52°	2.457389e6	3227.4	0.0°	None	2020-10-05	not scaled	2019-10-23
# 4908	1.0	140.130	136°, -67°	2.457389e6	3227.4	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] : 9d5667b0-ddb5-11f0-547e-8c8ffd97e267 [observed] Occultation Date + Time : 2024-11-01 at 21:02:58 UT +/- 0.01 min [1] Object Designation : (2423) Ibarruri Orbit Class : MBA Star Designation : GDR3 0089083535889709184 Star Coordinates (ICRF) : RA = 02 31 21.2182, DE = +21 50 10.755 [2] Star Magnitudes : G = 12.14 mag, RP = 11.49 mag, BP = 12.62 mag Object Magnitude : V = 14.48 mag Estimated Magnitude Drop : 2.5 mag Estimated Max. Duration : 1.1 sec Object Mean Diameter : 6.7 km (src: astorb) Speed of the shadow : 6.0 km/s Elongation to Moon & Sun : 176° (sunlit = 0%), Sun = 173° Cross-track uncertainty : 1.0 mas = 0 km = 0.08 path-width (1-sig) RUWE and duplicate source : 1.16 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#62 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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