Cora»Occultation

2026-01-02 / UCAC4 454-030936 / (194) Prokne

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Stefano Sposetti	O+	VID	M420	CH	GPS	22:56:50	22:57:43.88	22:57:53.23	22:58:50	0.170	0.180	9.35	143.1
2	show	Arnaud Leroy	O+	VID	M300	FR	GPS	22:56:46	22:58:13.18	22:58:20.38	22:59:46	0.150	0.150	7.20	110.2

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#170 : d0a61e60-de6b-11f0-4858-9f94f9ebea44 [db: asteroids]

Using prediction d0a61e60-de6b-11f0-4858-9f94f9ebea44 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 = -1136.4, 24.0 km
Circular diameter = 161 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] : d0a61e60-de6b-11f0-4858-9f94f9ebea44 [asteroids] Occultation Date + Time : 2026-01-02 at 22:55:28 UT +/- 0.01 min [1] Object Designation : (194) Prokne Orbit Class : MBA Star Designation : GDR3 3111390449437915264 Star Coordinates (ICRF) : RA = 07 13 02.2755, DE = +00 39 36.386 [2] Star Magnitudes : G = 13.57 mag, RP = 13.37 mag, BP = 13.67 mag Object Magnitude : V = 12.42 mag Estimated Magnitude Drop : 0.3 mag Estimated Max. Duration : 11.0 sec Object Mean Diameter : 168.4 km (src: astorb) Speed of the shadow : 15.3 km/s Elongation to Moon & Sun : 29° (sunlit = 100%), Sun = 157° 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 : JPL#170 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and DB] : d0a61e60-de6b-11f0-4858-9f94f9ebea44 [asteroids]

 Occultation Date + Time   : 2026-01-02 at 22:55:28 UT +/- 0.01 min  [1]
 Object Designation        : (194) Prokne
 Orbit Class               : MBA
 Star Designation          : GDR3 3111390449437915264
 Star Coordinates (ICRF)   : RA = 07 13 02.2755, DE = +00 39 36.386  [2]
 Star Magnitudes           : G = 13.57 mag, RP = 13.37 mag, BP = 13.67 mag
 Object Magnitude          : V = 12.42 mag
 Estimated Magnitude Drop  : 0.3 mag
 Estimated Max. Duration   : 11.0 sec
 Object Mean Diameter      : 168.4 km  (src: astorb)
 Speed of the shadow       : 15.3 km/s
 Elongation to Moon & Sun  : 29° (sunlit = 100%), Sun = 157°
 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       : JPL#170
 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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