Cora»Occultation

2025-12-09 / UCAC4 369-173208 / (191) Kolga

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Antoni Selva, Carles Schnabel	O+	VID	M500	ES	GPS	17:53:35	17:54:00.1	17:54:01.1	17:55:04	0.300	0.200	1.00	41.3

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

1 observation found in db: sodis

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

JPL#147 : d298b6f0-ddb8-11f0-547e-87f0affd0f78 [db: observed]

Using prediction d298b6f0-ddb8-11f0-547e-87f0affd0f78 for map and profile fit

Get observations as KML file (reduced site location resolution)

Sky projection (artificial light) for occ. time: 2025-12-09, 17:53 UT (JD = 2461019.245)

DAMIT	Q	P (h)	λ, β	JD0	JD-JD0	φ0	Version	Modified	Vol-equiv D	Cmnt
# 4072	1.0	17.604	170°, -39°	2.450774e6	10245.2	0.0°	None	2019-09-26	not scaled	2019-05-07
# 4073	1.0	17.604	328°, -42°	2.450774e6	10245.2	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] : d298b6f0-ddb8-11f0-547e-87f0affd0f78 [observed] Occultation Date + Time : 2025-12-09 at 17:52:18 UT +/- 0.0 min [1] Object Designation : (191) Kolga Orbit Class : MBA Star Designation : GDR3 4181639502955155200 Star Coordinates (ICRF) : RA = 19 43 52.5218, DE = -16 18 32.404 [2] Star Magnitudes : G = 14.83 mag, RP = 14.19 mag, BP = 15.32 mag Object Magnitude : V = 14.83 mag Estimated Magnitude Drop : 0.8 mag Estimated Max. Duration : 2.4 sec Object Mean Diameter : 101.0 km (src: astorb) Speed of the shadow : 41.3 km/s Elongation to Moon & Sun : 152° (sunlit = 72%), Sun = 37° Cross-track uncertainty : 0.4 mas = 1 km = 0.01 path-width (1-sig) RUWE and duplicate source : 1.03 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#147 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

Occultation UUID [and DB] : d298b6f0-ddb8-11f0-547e-87f0affd0f78 [observed] Occultation Date + Time : 2025-12-09 at 17:52:18 UT +/- 0.0 min [1] Object Designation : (191) Kolga Orbit Class : MBA Star Designation : GDR3 4181639502955155200 Star Coordinates (ICRF) : RA = 19 43 52.5218, DE = -16 18 32.404 [2] Star Magnitudes : G = 14.83 mag, RP = 14.19 mag, BP = 15.32 mag Object Magnitude : V = 14.83 mag Estimated Magnitude Drop : 0.8 mag Estimated Max. Duration : 2.4 sec Object Mean Diameter : 101.0 km (src: astorb) Speed of the shadow : 41.3 km/s Elongation to Moon & Sun : 152° (sunlit = 72%), Sun = 37° Cross-track uncertainty : 0.4 mas = 1 km = 0.01 path-width (1-sig) RUWE and duplicate source : 1.03 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#147 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

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