Cora»Occultation

2026-02-20 / UCAC4 485-003693 / (202) Chryseis

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Laimis Jasinskas	O+	VID	M190	LT	GPS	18:00:43	18:01:10.3	18:01:13.1	18:01:42	0.200	0.200	2.80	76.7
2	show	Darius Gasiunas	O+	VID	M250	LT	NTP	18:00:21	18:01:11.6	18:01:14.1	18:03:18	0.200	0.200	2.50	68.5

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):

JPL#118 : d9c4ddb0-de6b-11f0-4858-2efdb7ee9429 [db: asteroids]

Using prediction d9c4ddb0-de6b-11f0-4858-2efdb7ee9429 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 = 1334.3, 22.8 km
Circular diameter = 85 km

From 2 chords (VID)

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If the plot disappears, then there are less than 2 chords left (too much ignored, go back with browser).

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Map with groundtrack and observer stations

Event Details
Occultation UUID [and DB] : d9c4ddb0-de6b-11f0-4858-2efdb7ee9429 [asteroids] Occultation Date + Time : 2026-02-20 at 17:58:29 UT +/- 0.01 min [1] Object Designation : (202) Chryseis Orbit Class : MBA Star Designation : GDR3 0018933731964795520 Star Coordinates (ICRF) : RA = 02 38 39.8319, DE = +06 58 54.714 [2] Star Magnitudes : G = 13.33 mag, RP = 12.84 mag, BP = 13.64 mag Object Magnitude : V = 13.5 mag Estimated Magnitude Drop : 0.8 mag Estimated Max. Duration : 3.2 sec Object Mean Diameter : 86.2 km (src: astorb) Speed of the shadow : 27.4 km/s Elongation to Moon & Sun : 29° (sunlit = 12%), Sun = 68° Cross-track uncertainty : 1.5 mas = 3 km = 0.04 path-width (1-sig) RUWE and duplicate source : 4.88 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#118 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and DB] : d9c4ddb0-de6b-11f0-4858-2efdb7ee9429 [asteroids]

 Occultation Date + Time   : 2026-02-20 at 17:58:29 UT +/- 0.01 min  [1]
 Object Designation        : (202) Chryseis
 Orbit Class               : MBA
 Star Designation          : GDR3 0018933731964795520
 Star Coordinates (ICRF)   : RA = 02 38 39.8319, DE = +06 58 54.714  [2]
 Star Magnitudes           : G = 13.33 mag, RP = 12.84 mag, BP = 13.64 mag
 Object Magnitude          : V = 13.5 mag
 Estimated Magnitude Drop  : 0.8 mag
 Estimated Max. Duration   : 3.2 sec
 Object Mean Diameter      : 86.2 km  (src: astorb)
 Speed of the shadow       : 27.4 km/s
 Elongation to Moon & Sun  : 29° (sunlit = 12%), Sun = 68°
 Cross-track uncertainty   : 1.5 mas = 3 km = 0.04 path-width (1-sig)
 RUWE and duplicate source : 4.88 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#118
 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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