Cora»Occultation

2024-08-23 / TYC 1326-01656-1 / (1010) Marlene

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	David Lafuente Aznar	O+	CCD	M200	ES	NTP	03:38:36	03:40:36.48	03:40:37.59	03:42:37	0.07	0.07	1.11	36.0
2	show	Oscar Canales	O+	CCD	M280	ES	NTP	03:39:07	03:40:36.67	03:40:37.83	03:42:07	0.02	0.02	1.16	37.6

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#85 : 462b5770-ddb5-11f0-547e-336dffff144d [db: observed]

Using prediction 462b5770-ddb5-11f0-547e-336dffff144d 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 = -23.6, 21.1 km
Circular diameter = 37 km

From 2 chords (CCD)

You can enter space separated chord numbers (example: 11 4 8) or a method like VIS to ignore all visual timings, or a time source like RAD and NTP (but not GPS).
If the plot disappears, then there are less than 2 chords left (too much ignored, go back with browser).

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Check Johnston Archive for satellites.

Sky projection (artificial light) for occ. time: 2024-08-23, 03:39 UT (JD = 2460545.652)

DAMIT	Q	P (h)	λ, β	JD0	JD-JD0	φ0	Version	Modified	Vol-equiv D	Cmnt
# 1015	None	31.065	106°, 47°	2.451022e6	9523.7	0.0°	None	None	not scaled	2016-01-04
# 1016	None	31.065	299°, 42°	2.451022e6	9523.7	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] : 462b5770-ddb5-11f0-547e-336dffff144d [observed] Occultation Date + Time : 2024-08-23 at 03:42:52 UT +/- 0.0 min [1] Object Designation : (1010) Marlene Orbit Class : MBA Star Designation : GDR3 3423494933879541248 Star Coordinates (ICRF) : RA = 06 09 41.5426, DE = +21 59 33.498 [2] Star Magnitudes : G = 11.9 mag, RP = 11.69 mag, BP = 12.02 mag Object Magnitude : V = 16.3 mag Estimated Magnitude Drop : 4.4 mag Estimated Max. Duration : 1.3 sec Object Mean Diameter : 43.5 km (src: astorb) Speed of the shadow : 32.4 km/s Elongation to Moon & Sun : 75° (sunlit = 84%), Sun = 58° Cross-track uncertainty : 0.2 mas = 0 km = 0.01 path-width (1-sig) RUWE and duplicate source : 1.1 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#85 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and DB] : 462b5770-ddb5-11f0-547e-336dffff144d [observed]

 Occultation Date + Time   : 2024-08-23 at 03:42:52 UT +/- 0.0 min  [1]
 Object Designation        : (1010) Marlene
 Orbit Class               : MBA
 Star Designation          : GDR3 3423494933879541248
 Star Coordinates (ICRF)   : RA = 06 09 41.5426, DE = +21 59 33.498  [2]
 Star Magnitudes           : G = 11.9 mag, RP = 11.69 mag, BP = 12.02 mag
 Object Magnitude          : V = 16.3 mag
 Estimated Magnitude Drop  : 4.4 mag
 Estimated Max. Duration   : 1.3 sec
 Object Mean Diameter      : 43.5 km  (src: astorb)
 Speed of the shadow       : 32.4 km/s
 Elongation to Moon & Sun  : 75° (sunlit = 84%), Sun = 58°
 Cross-track uncertainty   : 0.2 mas = 0 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 1.1 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#85
 Note                      : FP:true

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

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