Cora»Occultation

2025-10-28 / UCAC4 330-205982 / (226) Weringia

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Carles Schnabel	O+	VID	M400	ES	GPS	20:31:43	20:33:32.86	20:33:35.11	20:35:34	0.070	0.150	2.25	24.3
2	show	Jorge JUAN, Carles Schnabel	O+	VID	M410	ES	GPS	20:30:13	20:33:32.37	20:33:34.13	20:35:08	0.160	0.160	1.76	19.0
3	show	Martin Gutekunst	O+	VID	L280	DE	GPS	20:33:20	20:34:21.041	20:34:22.531	20:35:20	0.068	0.068	1.49	16.1

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

3 observations found in db: sodis

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

JPL#77 : 331d0630-ddb3-11f0-547e-c571fff27b7f [db: observed]

JPL#77 : a57f26e0-ddb8-11f0-547e-a3925f9daed6 [db: observed]

Using prediction 331d0630-ddb3-11f0-547e-c571fff27b7f 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:
Size = 121 x 6 km
a',b' = 60.3, 3.2 km
X0,Y0 = 1375.5, 18.5 km
Mean diameter = 28 km

From 3 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: 2025-10-28, 20:33 UT (JD = 2460977.356)

DAMIT	Q	P (h)	λ, β	JD0	JD-JD0	φ0	Version	Modified	Vol-equiv D	Cmnt
# 1074	None	11.148	284°, -14°	2.444424e6	16553.4	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

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

Map with groundtrack and observer stations

Event Details
Occultation UUID [and DB] : 331d0630-ddb3-11f0-547e-c571fff27b7f [observed] Occultation Date + Time : 2025-10-28 at 20:28:52 UT +/- 0.01 min [1] Object Designation : (226) Weringia Orbit Class : MBA Star Designation : GDR3 6813083738059054848 Star Coordinates (ICRF) : RA = 21 54 05.5277, DE = -24 11 37.593 [2] Star Magnitudes : G = 13.56 mag, RP = 12.94 mag, BP = 14.0 mag Object Magnitude : V = 14.2 mag Estimated Magnitude Drop : 1.1 mag Estimated Max. Duration : 3.1 sec Object Mean Diameter : 33.8 km (src: astorb) Speed of the shadow : 10.8 km/s Elongation to Moon & Sun : 27° (sunlit = 42%), Sun = 106° Cross-track uncertainty : 0.3 mas = 0 km = 0.01 path-width (1-sig) RUWE and duplicate source : 0.97 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#77 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and DB] : 331d0630-ddb3-11f0-547e-c571fff27b7f [observed]

 Occultation Date + Time   : 2025-10-28 at 20:28:52 UT +/- 0.01 min  [1]
 Object Designation        : (226) Weringia
 Orbit Class               : MBA
 Star Designation          : GDR3 6813083738059054848
 Star Coordinates (ICRF)   : RA = 21 54 05.5277, DE = -24 11 37.593  [2]
 Star Magnitudes           : G = 13.56 mag, RP = 12.94 mag, BP = 14.0 mag
 Object Magnitude          : V = 14.2 mag
 Estimated Magnitude Drop  : 1.1 mag
 Estimated Max. Duration   : 3.1 sec
 Object Mean Diameter      : 33.8 km  (src: astorb)
 Speed of the shadow       : 10.8 km/s
 Elongation to Moon & Sun  : 27° (sunlit = 42%), Sun = 106°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 0.97 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#77
 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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