Cora»Occultation

2026-08-10 / UCAC4 343-160162 / (2444) Lederle

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Deborah Smith, Eric Smith	O+	VID	M280	ES	GPS	23:24:47	23:25:44.527	23:25:46.527	23:26:47	0.643	0.643	2.00	16.4
2	show	Faustino Garcia	O+	CCD	T250	ES	GPS	23:24:29	23:26:25.2	23:26:27.5	23:28:28	0.600	0.600	2.30	18.9

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):

JPL66 : 7145b780-d9ad-11f1-43f3-9a63f6f71d36 [db: observed]

Using prediction 7145b780-d9ad-11f1-43f3-9a63f6f71d36 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 = -2437.3, 13.3 km
Circular diameter = 34 km

From 2 chords (CCD,VID)

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Map with groundtrack and observer stations

Event Details
Occultation UUID [and DB] : 7145b780-d9ad-11f1-43f3-9a63f6f71d36 [observed] Occultation Date + Time : 2026-08-10 at 23:25:31 UT +/- 0.0 min [1] Object Designation : (2444) Lederle Orbit Class : MBA Star Designation : GDR3 4091574584217505664 Star Coordinates (ICRF) : RA = 18 34 18.6820, DE = -21 26 07.508 [2] Star Magnitudes : G = 15.01 mag, RP = 13.96 mag, BP = 15.95 mag Object Magnitude : V = 16.7 mag Estimated Magnitude Drop : 1.9 mag Estimated Max. Duration : 1.7 sec Object Mean Diameter : 13.9 km (src: astorb) Speed of the shadow : 8.2 km/s Elongation to Moon & Sun : 163° (sunlit = 4%), Sun = 140° Cross-track uncertainty : 0.6 mas = 0 km = 0.07 path-width (1-sig) RUWE and duplicate source : 1.48 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL66 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and DB] : 7145b780-d9ad-11f1-43f3-9a63f6f71d36 [observed]

 Occultation Date + Time   : 2026-08-10 at 23:25:31 UT +/- 0.0 min  [1]
 Object Designation        : (2444) Lederle
 Orbit Class               : MBA
 Star Designation          : GDR3 4091574584217505664
 Star Coordinates (ICRF)   : RA = 18 34 18.6820, DE = -21 26 07.508  [2]
 Star Magnitudes           : G = 15.01 mag, RP = 13.96 mag, BP = 15.95 mag
 Object Magnitude          : V = 16.7 mag
 Estimated Magnitude Drop  : 1.9 mag
 Estimated Max. Duration   : 1.7 sec
 Object Mean Diameter      : 13.9 km  (src: astorb)
 Speed of the shadow       : 8.2 km/s
 Elongation to Moon & Sun  : 163° (sunlit = 4%), Sun = 140°
 Cross-track uncertainty   : 0.6 mas = 0 km = 0.07 path-width (1-sig)
 RUWE and duplicate source : 1.48 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL66
 Note                      : FP:true

 
 [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

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