Cora»Occultation

2025-10-06 / UCAC4 657-036809 / (98) Ianthe

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Deborah Smith, Eric Smith	O+	VID	M150	ES	GPS	04:16:21	04:18:17.485	04:18:25.972	04:20:22	0.258	0.258	8.49	107.0

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#125 : 83f26ff0-ddb8-11f0-547e-f8c7ef4fe440 [db: observed]

Using prediction 83f26ff0-ddb8-11f0-547e-f8c7ef4fe440 for map and profile fit

Get observations as KML file (reduced site location resolution)

Sky projection (artificial light) for occ. time: 2025-10-06, 04:17 UT (JD = 2460954.678)

DAMIT	Q	P (h)	λ, β	JD0	JD-JD0	φ0	Version	Modified	Vol-equiv D	Cmnt
# 1088	None	16.480	286°, 18°	2.446854e6	14100.7	0.0°	None	None	not scaled	2016-01-04

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] : 83f26ff0-ddb8-11f0-547e-f8c7ef4fe440 [observed] Occultation Date + Time : 2025-10-06 at 04:19:43 UT +/- 0.01 min [1] Object Designation : (98) Ianthe Orbit Class : MBA Star Designation : GDR3 0191377081220322944 Star Coordinates (ICRF) : RA = 05 38 09.2400, DE = +41 17 33.974 [2] Star Magnitudes : G = 14.32 mag, RP = 13.42 mag, BP = 14.47 mag Object Magnitude : V = 13.69 mag Estimated Magnitude Drop : 0.5 mag Estimated Max. Duration : 8.3 sec Object Mean Diameter : 104.5 km (src: astorb) Speed of the shadow : 12.6 km/s Elongation to Moon & Sun : 86° (sunlit = 99%), Sun = 107° Cross-track uncertainty : 2.4 mas = 3 km = 0.04 path-width (1-sig) RUWE and duplicate source : 7.15 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#125 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

Occultation UUID [and DB] : 83f26ff0-ddb8-11f0-547e-f8c7ef4fe440 [observed] Occultation Date + Time : 2025-10-06 at 04:19:43 UT +/- 0.01 min [1] Object Designation : (98) Ianthe Orbit Class : MBA Star Designation : GDR3 0191377081220322944 Star Coordinates (ICRF) : RA = 05 38 09.2400, DE = +41 17 33.974 [2] Star Magnitudes : G = 14.32 mag, RP = 13.42 mag, BP = 14.47 mag Object Magnitude : V = 13.69 mag Estimated Magnitude Drop : 0.5 mag Estimated Max. Duration : 8.3 sec Object Mean Diameter : 104.5 km (src: astorb) Speed of the shadow : 12.6 km/s Elongation to Moon & Sun : 86° (sunlit = 99%), Sun = 107° Cross-track uncertainty : 2.4 mas = 3 km = 0.04 path-width (1-sig) RUWE and duplicate source : 7.15 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#125 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

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