Cora»Occultation

2026-10-07 / TYC 2947-00615-1 / (746) Marlu

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Malcolm Jennings	O+	VID	M276	GB	GPS	23:42:00	23:44:28.63	23:44:34.69	23:46:00	0.025	0.025	6.06	89.1
2	show	Simon Kidd	O+	VID	M350	GB	GPS	23:43:31	23:44:32.773	23:44:38.824	23:45:31	0.019	0.019	6.05	88.9

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):

JPL135 : 19db93b0-d9b3-11f1-43f3-2a15dfc47396 [db: observed]

Using prediction 19db93b0-d9b3-11f1-43f3-2a15dfc47396 for map and profile fit

Get observations as KML file (reduced site location resolution)

Ellipse and circular profile fits to the timings (chords)

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Sky projection (artificial light) for occ. time: 2026-10-07, 23:44 UT (JD = 2461321.489)

DAMIT	Q	P (h)	λ, β	JD0	JD-JD0	φ0	Version	Modified	Vol-equiv D	Cmnt
# 1148	None	7.789	202°, -66°	2.444854e6	16467.5	0.0°	None	None	not scaled	2016-01-04
# 1149	None	7.789	64°, -27°	2.444854e6	16467.5	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] : 19db93b0-d9b3-11f1-43f3-2a15dfc47396 [observed] Occultation Date + Time : 2026-10-07 at 23:46:25 UT +/- 0.01 min [1] Object Designation : (746) Marlu Orbit Class : MBA Star Designation : GDR3 0947900557834015744 Star Coordinates (ICRF) : RA = 07 07 44.2779, DE = +40 53 34.648 [2] Star Magnitudes : G = 11.03 mag, RP = 10.35 mag, BP = 11.57 mag Object Magnitude : V = 16.23 mag Estimated Magnitude Drop : 5.2 mag Estimated Max. Duration : 4.8 sec Object Mean Diameter : 69.8 km (src: astorb) Speed of the shadow : 14.7 km/s Elongation to Moon & Sun : 61° (sunlit = 8%), Sun = 91° Cross-track uncertainty : 0.4 mas = 0 km = 0.01 path-width (1-sig) RUWE and duplicate source : 0.97 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL135 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and DB] : 19db93b0-d9b3-11f1-43f3-2a15dfc47396 [observed]

 Occultation Date + Time   : 2026-10-07 at 23:46:25 UT +/- 0.01 min  [1]
 Object Designation        : (746) Marlu
 Orbit Class               : MBA
 Star Designation          : GDR3 0947900557834015744
 Star Coordinates (ICRF)   : RA = 07 07 44.2779, DE = +40 53 34.648  [2]
 Star Magnitudes           : G = 11.03 mag, RP = 10.35 mag, BP = 11.57 mag
 Object Magnitude          : V = 16.23 mag
 Estimated Magnitude Drop  : 5.2 mag
 Estimated Max. Duration   : 4.8 sec
 Object Mean Diameter      : 69.8 km  (src: astorb)
 Speed of the shadow       : 14.7 km/s
 Elongation to Moon & Sun  : 61° (sunlit = 8%), Sun = 91°
 Cross-track uncertainty   : 0.4 mas = 0 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 0.97 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL135
 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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