2024-08-02 / TYC 1822-01023-1 / (361) Bononia

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Carles Schnabel	O+	VID	M400	ES	GPS	03:57:50	03:58:11.149	03:58:14.359	03:58:40	0.010	0.010	3.21	96.9
2	show	Jorge JUAN	O+	VID	M410	ES	GPS	03:57:11	03:58:10.949	03:58:14.528	03:59:13	0.02	0.02	3.58	108.1

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

2 observations found in db: sodis

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

JPL#130 : 22320d50-ddb5-11f0-547e-1f11ffbf261a [db: observed]

Using prediction 22320d50-ddb5-11f0-547e-1f11ffbf261a for map and profile fit

Ellipse and circular profile fits to the timings (chords)

Auto-Fit Result: X0,Y0 = 1238.9, 18.3 km Circular diameter = 124 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: 2024-08-02, 03:58 UT (JD = 2460524.665)

DAMIT	Q	P (h)	λ, β	JD0	JD-JD0	φ0	Version	Modified	Vol-equiv D	Cmnt
# 1173	None	13.806	115°, 45°	2.446885e6	13639.7	0.0°	None	None	not scaled	2016-01-04
# 1174	None	13.806	294°, 13°	2.446885e6	13639.7	0.0°	None	None	not scaled	2016-01-04

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] : 22320d50-ddb5-11f0-547e-1f11ffbf261a [observed] Occultation Date + Time : 2024-08-02 at 03:59:38 UT +/- 0.01 min [1] Object Designation : (361) Bononia Orbit Class : MBA Star Designation : GDR3 0162661685792044544 Star Coordinates (ICRF) : RA = 04 07 46.4995, DE = +26 50 30.452 [2] Star Magnitudes : G = 10.78 mag, RP = 10.05 mag, BP = 11.36 mag Object Magnitude : V = 14.57 mag Estimated Magnitude Drop : 3.8 mag Estimated Max. Duration : 4.7 sec Object Mean Diameter : 141.7 km (src: astorb) Speed of the shadow : 30.2 km/s Elongation to Moon & Sun : 38° (sunlit = 6%), Sun = 65° Cross-track uncertainty : 2.0 mas = 5 km = 0.04 path-width (1-sig) RUWE and duplicate source : 1.02 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#130 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)