Cora»Occultation

2026-09-17 / UCAC4 583-134435 / (695) Bella

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Piotr Walczak, Katarzyna Piotrowska	O+	VID	M130	PL	GPS	22:34:00	22:34:59.65	22:35:06.8	22:36:00	0.200	0.200	7.15	52.9
2	show	Marek Zawilski, Mieczyslaw Borkowski	O+	VID	M200	PL	GPS	22:34:12	22:35:00.05	22:35:04.14	22:36:04	0.200	0.100	4.09	30.3
3	show	Zdenek Sikac	O-	VID	T150	CZ	GPS	22:34:57	::	::	22:36:58

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):

JPL70 : cee06540-d9b0-11f1-43f3-84797ebb7cbc [db: observed]

Using prediction cee06540-d9b0-11f1-43f3-84797ebb7cbc for map and profile fit

Get observations as KML file (reduced site location resolution)

Ellipse and circular profile fits to the timings (chords)

Auto-Fit Result:
X0,Y0 = 446.7, 16.0 km
Circular diameter = 74 km

From 2 chords (VID)

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: 2026-09-17, 22:33 UT (JD = 2461301.440)

DAMIT	Q	P (h)	λ, β	JD0	JD-JD0	φ0	Version	Modified	Vol-equiv D	Cmnt
# 378	None	14.219	87°, -55°	2.444785e6	16516.4	0.0°	None	2011-05-02	not scaled	2011-04-21
# 379	None	14.219	314°, -56°	2.444785e6	16516.4	0.0°	None	2011-05-02	not scaled	2011-04-21

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

Image size: 300px. Transparent image background for copy & paste

Map with groundtrack and observer stations

Event Details
Occultation UUID [and DB] : cee06540-d9b0-11f1-43f3-84797ebb7cbc [observed] Occultation Date + Time : 2026-09-17 at 22:35:43 UT +/- 0.01 min [1] Object Designation : (695) Bella Orbit Class : MBA Star Designation : GDR3 2852942991420981632 Star Coordinates (ICRF) : RA = 23 49 40.6448, DE = +26 29 54.569 [2] Star Magnitudes : G = 13.04 mag, RP = 12.58 mag, BP = 13.35 mag Object Magnitude : V = 12.0 mag Estimated Magnitude Drop : 0.4 mag Estimated Max. Duration : 6.5 sec Object Mean Diameter : 48.2 km (src: astorb) Speed of the shadow : 7.4 km/s Elongation to Moon & Sun : 114° (sunlit = 41%), Sun = 151° Cross-track uncertainty : 2.0 mas = 1 km = 0.04 path-width (1-sig) RUWE and duplicate source : 1.03 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL70 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and DB] : cee06540-d9b0-11f1-43f3-84797ebb7cbc [observed]

 Occultation Date + Time   : 2026-09-17 at 22:35:43 UT +/- 0.01 min  [1]
 Object Designation        : (695) Bella
 Orbit Class               : MBA
 Star Designation          : GDR3 2852942991420981632
 Star Coordinates (ICRF)   : RA = 23 49 40.6448, DE = +26 29 54.569  [2]
 Star Magnitudes           : G = 13.04 mag, RP = 12.58 mag, BP = 13.35 mag
 Object Magnitude          : V = 12.0 mag
 Estimated Magnitude Drop  : 0.4 mag
 Estimated Max. Duration   : 6.5 sec
 Object Mean Diameter      : 48.2 km  (src: astorb)
 Speed of the shadow       : 7.4 km/s
 Elongation to Moon & Sun  : 114° (sunlit = 41%), Sun = 151°
 Cross-track uncertainty   : 2.0 mas = 1 km = 0.04 path-width (1-sig)
 RUWE and duplicate source : 1.03 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL70
 Note                      : FP:true

 
 [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

More Data and Informations

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