Cora»Occultation

2026-09-12 / UCAC4 409-119885 / (345) Tercidina

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Carles Schnabel	O+	VID	M400	ES	GPS	19:19:16	19:22:04.21	19:22:22.74	19:25:20	0.090	0.060	18.53	94.5
2	show	Jean-Baptiste Marquette	O+	VID	M304	FR	GPS	19:19:14	19:21:22.82	19:21:40.33	19:23:14	0.550	0.550	17.51	89.3

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):

JPL153 : de802e90-d9b0-11f1-43f3-7ee2ad3dba95 [db: observed]

Using prediction de802e90-d9b0-11f1-43f3-7ee2ad3dba95 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 = -1540.2, 61.6 km
Circular diameter = 171 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: 2026-09-12, 19:22 UT (JD = 2461296.307)

DAMIT	Q	P (h)	λ, β	JD0	JD-JD0	φ0	Version	Modified	Vol-equiv D	Cmnt
# 512	None	12.371	346°, -55°	2.443957e6	17339.3	0.0°	None	None	96.0 +/- 10.0 km	2013-02-26

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] : de802e90-d9b0-11f1-43f3-7ee2ad3dba95 [observed] Occultation Date + Time : 2026-09-12 at 19:37:20 UT +/- 0.03 min [1] Object Designation : (345) Tercidina Orbit Class : MBA Star Designation : GDR3 4206707062403284352 Star Coordinates (ICRF) : RA = 19 28 33.3441, DE = -08 16 09.174 [2] Star Magnitudes : G = 14.07 mag, RP = 13.1 mag, BP = 15.03 mag Object Magnitude : V = 13.22 mag Estimated Magnitude Drop : 0.4 mag Estimated Max. Duration : 18.5 sec Object Mean Diameter : 94.1 km (src: astorb) Speed of the shadow : 5.1 km/s Elongation to Moon & Sun : 102° (sunlit = 3%), Sun = 121° Cross-track uncertainty : 1.0 mas = 1 km = 0.01 path-width (1-sig) RUWE and duplicate source : 1.06 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL153 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and DB] : de802e90-d9b0-11f1-43f3-7ee2ad3dba95 [observed]

 Occultation Date + Time   : 2026-09-12 at 19:37:20 UT +/- 0.03 min  [1]
 Object Designation        : (345) Tercidina
 Orbit Class               : MBA
 Star Designation          : GDR3 4206707062403284352
 Star Coordinates (ICRF)   : RA = 19 28 33.3441, DE = -08 16 09.174  [2]
 Star Magnitudes           : G = 14.07 mag, RP = 13.1 mag, BP = 15.03 mag
 Object Magnitude          : V = 13.22 mag
 Estimated Magnitude Drop  : 0.4 mag
 Estimated Max. Duration   : 18.5 sec
 Object Mean Diameter      : 94.1 km  (src: astorb)
 Speed of the shadow       : 5.1 km/s
 Elongation to Moon & Sun  : 102° (sunlit = 3%), Sun = 121°
 Cross-track uncertainty   : 1.0 mas = 1 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 1.06 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL153
 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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