Cora»Occultation

2026-04-08 / TYC 1929-00022-1 / (337) Devosa

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Antonio Vecchione	O+	VID	M250	IT	GPS	23:21:02	23:22:04.42	23:22:07.40	23:23:00	0.150	0.300	2.98	49.5
2	show	Michael Kohl	O+	VID	M200	CH	GPS	23:20:41	23:21:25.382	23:21:28.910	23:22:09	0.010	0.020	3.53	58.6
3	show	Andreas Schweizer	O+	VID	M250	CH	GPS	23:20:56	23:21:25.281	23:21:28.643	23:21:56	0.004	0.004	3.36	55.8
4	show	Stefan Meister, Andreas Schweizer	O+	VID	T800	CH	GPS	23:21:14	23:21:23.916	23:21:27.408	23:21:34	0.005	0.005	3.49	57.9
5	show	Karl-Ludwig Bath, Christian Schubert	O-	CCD	L128	DE	NTP	23:18:01	::	::	23:24:00

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

5 observations found in db: sodis

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

JPL#122 : 60f9b460-33c4-11f1-6999-a8e37fb4e2c0 [db: asteroids]

Using prediction 60f9b460-33c4-11f1-6999-a8e37fb4e2c0 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 = 66 x 45 km
a',b' = 32.9, 22.7 km
X0,Y0 = -2267.4, 5.2 km
Mean diameter = 55 km

From 4 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: 2026-04-08, 23:22 UT (JD = 2461139.474)

DAMIT	Q	P (h)	λ, β	JD0	JD-JD0	φ0	Version	Modified	Vol-equiv D	Cmnt
# 5179	1.0	4.653	359°, 55°	2.457482e6	3657.5	0.0°	None	2020-10-05	not scaled	2019-10-23
# 5180	1.0	4.653	163°, 28°	2.457482e6	3657.5	0.0°	None	2020-10-05	not scaled	2019-10-23

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] : 60f9b460-33c4-11f1-6999-a8e37fb4e2c0 [asteroids] Occultation Date + Time : 2026-04-08 at 23:19:15 UT +/- 0.0 min [1] Object Designation : (337) Devosa Orbit Class : MBA Star Designation : GDR3 0874048526461019520 Star Coordinates (ICRF) : RA = 07 51 15.3718, DE = +26 09 54.520 [2] Star Magnitudes : G = 10.56 mag, RP = 10.22 mag, BP = 10.75 mag Object Magnitude : V = 13.04 mag Estimated Magnitude Drop : 2.6 mag Estimated Max. Duration : 3.6 sec Object Mean Diameter : 59.1 km (src: astorb) Speed of the shadow : 16.6 km/s Elongation to Moon & Sun : 161° (sunlit = 62%), Sun = 96° Cross-track uncertainty : 1.0 mas = 1 km = 0.02 path-width (1-sig) RUWE and duplicate source : 1.15 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#122 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and DB] : 60f9b460-33c4-11f1-6999-a8e37fb4e2c0 [asteroids]

 Occultation Date + Time   : 2026-04-08 at 23:19:15 UT +/- 0.0 min  [1]
 Object Designation        : (337) Devosa
 Orbit Class               : MBA
 Star Designation          : GDR3 0874048526461019520
 Star Coordinates (ICRF)   : RA = 07 51 15.3718, DE = +26 09 54.520  [2]
 Star Magnitudes           : G = 10.56 mag, RP = 10.22 mag, BP = 10.75 mag
 Object Magnitude          : V = 13.04 mag
 Estimated Magnitude Drop  : 2.6 mag
 Estimated Max. Duration   : 3.6 sec
 Object Mean Diameter      : 59.1 km  (src: astorb)
 Speed of the shadow       : 16.6 km/s
 Elongation to Moon & Sun  : 161° (sunlit = 62%), Sun = 96°
 Cross-track uncertainty   : 1.0 mas = 1 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 1.15 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#122
 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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