Cora»Occultation

2024-09-08 / UCAC4 464-121528 / (266) Aline

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Daniel Antuszewicz	O+	VID	M200	PL	NTP	20:57:48	20:58:58.6	20:59:11.6	21:00:47	0.2	0.4	13.00	94.9
2	show	Donatas Tamonis	O+	VID	M200	LT	NTP	20:57:38	20:58:28.8	20:58:42.1	20:58:55	0.2	0.2	13.30	97.1
3	show	Anton Zhdanov	O+	VID	M150	RU	GPS	20:56:23	20:57:41.79	20:57:47.08	20:59:08	0.05	0.10	5.29	38.6
4	show	Michele Turchenko	O+	VID	M150	RU	GPS	20:56:34	20:57:41.5	20:57:45.81	20:58:40	0.3	0.2	4.31	31.5

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

4 observations found in db: sodis

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

JPL#145 : 7ef4b1f0-ddb5-11f0-547e-5d58bfffca4d [db: observed]

Using prediction 7ef4b1f0-ddb5-11f0-547e-5d58bfffca4d 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:
Size = 112 x 91 km
a',b' = 55.8, 45.3 km
X0,Y0 = 1822.9, 27.6 km
Mean diameter = 100 km

From 4 chords (VID)

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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Map with groundtrack and observer stations

Event Details
Occultation UUID [and DB] : 7ef4b1f0-ddb5-11f0-547e-5d58bfffca4d [observed] Occultation Date + Time : 2024-09-08 at 21:08:53 UT +/- 0.02 min [1] Object Designation : (266) Aline Orbit Class : MBA Star Designation : GDR3 4232837265465212416 Star Coordinates (ICRF) : RA = 20 37 59.8020, DE = +02 44 18.271 [2] Star Magnitudes : G = 13.14 mag, RP = 12.65 mag, BP = 13.46 mag Object Magnitude : V = 12.7 mag Estimated Magnitude Drop : 0.6 mag Estimated Max. Duration : 14.9 sec Object Mean Diameter : 109.1 km (src: astorb) Speed of the shadow : 7.3 km/s Elongation to Moon & Sun : 85° (sunlit = 28%), Sun = 141° Cross-track uncertainty : 1.7 mas = 2 km = 0.02 path-width (1-sig) RUWE and duplicate source : 0.97 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#145 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and DB] : 7ef4b1f0-ddb5-11f0-547e-5d58bfffca4d [observed]

 Occultation Date + Time   : 2024-09-08 at 21:08:53 UT +/- 0.02 min  [1]
 Object Designation        : (266) Aline
 Orbit Class               : MBA
 Star Designation          : GDR3 4232837265465212416
 Star Coordinates (ICRF)   : RA = 20 37 59.8020, DE = +02 44 18.271  [2]
 Star Magnitudes           : G = 13.14 mag, RP = 12.65 mag, BP = 13.46 mag
 Object Magnitude          : V = 12.7 mag
 Estimated Magnitude Drop  : 0.6 mag
 Estimated Max. Duration   : 14.9 sec
 Object Mean Diameter      : 109.1 km  (src: astorb)
 Speed of the shadow       : 7.3 km/s
 Elongation to Moon & Sun  : 85° (sunlit = 28%), Sun = 141°
 Cross-track uncertainty   : 1.7 mas = 2 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 0.97 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#145
 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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