Cora»Occultation

2026-02-26 / UCAC4 585-048149 / (5254) Ulysses

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Alfonso Noschese	O+	VID	M450	IT	GPS	03:32:48	03:33:30.558	03:33:35.647	03:34:18	0.010	0.010	5.09	81.9
2	show	Antonio Vecchione	O+	VID	M250	IT	GPS	03:33:00	03:33:31.50	03:33:36.58	03:34:00	0.030	0.030	5.08	81.8
3	show	Stefano Sposetti	O+	VID	M420	CH	GPS	03:33:20	03:34:18.986	03:34:20.269	03:35:20	0.003	0.003	1.28	20.6
4	show	Andreas Schweizer	O+	VID	L107	CH	GPS	03:33:54	03:34:24.193	03:34:24.770	03:34:54	0.026	0.026	0.58	9.3
5	show	Michael Kohl	O+	VID	M200	CH	GPS	03:33:25	03:34:24.333	03:34:30.034	03:35:26	0.027	0.027	5.70	91.8
6	show	Jonas Schenker, Josef Kaeser	O+	VID	T450	CH	GPS	03:34:12	03:34:28.36	03:34:30.09	03:34:46	0.010	0.010	1.73	27.9
7	show	Stefan Meister	O+	VID	M500	CH	GPS	03:34:06	03:34:26.363	03:34:32.178	03:34:51	0.003	0.003	5.82	93.7

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

7 observations found in db: sodis

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

JPL#73 : f59a9af0-de77-11f0-4858-26f726bf2934 [db: asteroids]

Using prediction f59a9af0-de77-11f0-4858-26f726bf2934 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 = 102 x 67 km
a',b' = 51.0, 33.4 km
X0,Y0 = -2085.2, 0.2 km
Mean diameter = 82 km

From 7 chords (VID)

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Map with groundtrack and observer stations

Event Details
Occultation UUID [and DB] : f59a9af0-de77-11f0-4858-26f726bf2934 [asteroids] Occultation Date + Time : 2026-02-26 at 03:34:19 UT +/- 0.04 min [1] Object Designation : (5254) Ulysses Orbit Class : JTRO Star Designation : GDR3 3961438659987348096 Star Coordinates (ICRF) : RA = 12 43 46.1658, DE = +26 48 26.488 [2] Star Magnitudes : G = 11.6 mag, RP = 10.98 mag, BP = 12.06 mag Object Magnitude : V = 16.61 mag Estimated Magnitude Drop : 5.0 mag Estimated Max. Duration : 3.1 sec Object Mean Diameter : 50.1 km (src: astorb) Speed of the shadow : 16.1 km/s Elongation to Moon & Sun : 87° (sunlit = 68%), Sun = 145° Cross-track uncertainty : 6.0 mas = 19 km = 0.40 path-width (1-sig) RUWE and duplicate source : 1.16 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#73 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and DB] : f59a9af0-de77-11f0-4858-26f726bf2934 [asteroids]

 Occultation Date + Time   : 2026-02-26 at 03:34:19 UT +/- 0.04 min  [1]
 Object Designation        : (5254) Ulysses
 Orbit Class               : JTRO
 Star Designation          : GDR3 3961438659987348096
 Star Coordinates (ICRF)   : RA = 12 43 46.1658, DE = +26 48 26.488  [2]
 Star Magnitudes           : G = 11.6 mag, RP = 10.98 mag, BP = 12.06 mag
 Object Magnitude          : V = 16.61 mag
 Estimated Magnitude Drop  : 5.0 mag
 Estimated Max. Duration   : 3.1 sec
 Object Mean Diameter      : 50.1 km  (src: astorb)
 Speed of the shadow       : 16.1 km/s
 Elongation to Moon & Sun  : 87° (sunlit = 68%), Sun = 145°
 Cross-track uncertainty   : 6.0 mas = 19 km = 0.40 path-width (1-sig)
 RUWE and duplicate source : 1.16 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#73
 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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