Cora»Occultation

2026-02-23 / UCAC4 630-031699 / (952) Caia

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Deborah Smith	O+	VID	M300	ES	GPS	20:46:02	20:46:50.106	20:47:01.709	20:48:02	0.067	0.067	11.60	71.9
2	show	Deborah Smith	O+	VID	M250	ES	GPS	20:45:44	20:46:38.800	20:46:53.800	20:47:44	0.068	0.068	15.00	93.0
3	show	Ferran Casarramona	O-	VID	M200	ES	GPS	20:45:02	::	::	20:49:01

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#83 : dbd91050-de6e-11f0-4858-313a7456a795 [db: asteroids]

Using prediction dbd91050-de6e-11f0-4858-313a7456a795 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 = -649.6, 16.0 km
Circular diameter = 95 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: 2026-02-23, 20:45 UT (JD = 2461095.365)

DAMIT	Q	P (h)	λ, β	JD0	JD-JD0	φ0	Version	Modified	Vol-equiv D	Cmnt
# 3837	1.0	7.501	239°, -19°	2.450956e6	10139.4	0.0°	None	2019-09-26	not scaled	2019-05-07

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] : dbd91050-de6e-11f0-4858-313a7456a795 [asteroids] Occultation Date + Time : 2026-02-23 at 20:45:44 UT +/- 0.02 min [1] Object Designation : (952) Caia Orbit Class : MBA Star Designation : GDR3 3453394503328040448 Star Coordinates (ICRF) : RA = 06 08 47.3364, DE = +35 57 57.112 [2] Star Magnitudes : G = 14.24 mag, RP = 13.41 mag, BP = 14.98 mag Object Magnitude : V = 14.52 mag Estimated Magnitude Drop : 0.9 mag Estimated Max. Duration : 13.1 sec Object Mean Diameter : 81.6 km (src: astorb) Speed of the shadow : 6.2 km/s Elongation to Moon & Sun : 36° (sunlit = 43%), Sun = 116° Cross-track uncertainty : 0.3 mas = 0 km = 0.01 path-width (1-sig) RUWE and duplicate source : 1.04 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#83 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and DB] : dbd91050-de6e-11f0-4858-313a7456a795 [asteroids]

 Occultation Date + Time   : 2026-02-23 at 20:45:44 UT +/- 0.02 min  [1]
 Object Designation        : (952) Caia
 Orbit Class               : MBA
 Star Designation          : GDR3 3453394503328040448
 Star Coordinates (ICRF)   : RA = 06 08 47.3364, DE = +35 57 57.112  [2]
 Star Magnitudes           : G = 14.24 mag, RP = 13.41 mag, BP = 14.98 mag
 Object Magnitude          : V = 14.52 mag
 Estimated Magnitude Drop  : 0.9 mag
 Estimated Max. Duration   : 13.1 sec
 Object Mean Diameter      : 81.6 km  (src: astorb)
 Speed of the shadow       : 6.2 km/s
 Elongation to Moon & Sun  : 36° (sunlit = 43%), Sun = 116°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 1.04 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#83
 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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