Cora»Occultation

2023-08-16 / TYC 5194-01206-1 / (32338) 2000 QS87

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Sven Andersson, Martina Haupt	O+	VID	M360	DE	GPS	20:02:41	20:02:49.49	20:02:50.09	20:03:21	0.017	0.017	0.60	9.4
2	show	Christian Weber	O+	CCD	M150	DE	GPS	20:01:42	20:02:49.747	20:02:50.242	20:03:32	0.033	0.033	0.49	7.6
3	show	Gregor Krannich	O-	VID	M350	DE	GPS	20:02:22			20:04:22

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

3 observations found in db: sodis

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

JPL#55 : efbd7220-ddb3-11f0-547e-c4fdace72483 [db: observed]

Using prediction efbd7220-ddb3-11f0-547e-c4fdace72483 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 = 3521.5, -66.8 km
Circular diameter = 13 km

From 2 chords (VID,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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Map with groundtrack and observer stations

Event Details
Occultation UUID [and DB] : efbd7220-ddb3-11f0-547e-c4fdace72483 [observed] Occultation Date + Time : 2023-08-16 at 20:04:15 UT +/- 0.0 min [1] Object Designation : (32338) 2000 QS87 Orbit Class : MBA Star Designation : GDR3 2689232238394903808 Star Coordinates (ICRF) : RA = 21 16 29.7112, DE = -00 54 13.015 [2] Star Magnitudes : G = 10.26 mag, RP = 9.8 mag, BP = 10.57 mag Object Magnitude : V = 18.73 mag Estimated Magnitude Drop : 8.5 mag Estimated Max. Duration : 0.4 sec Object Mean Diameter : 5.8 km (src: astorb) Speed of the shadow : 15.6 km/s Elongation to Moon & Sun : 160° (sunlit = 0%), Sun = 166° Cross-track uncertainty : 0.3 mas = 0 km = 0.09 path-width (1-sig) RUWE and duplicate source : 1.04 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#55 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

Occultation UUID [and DB] : efbd7220-ddb3-11f0-547e-c4fdace72483 [observed] Occultation Date + Time : 2023-08-16 at 20:04:15 UT +/- 0.0 min [1] Object Designation : (32338) 2000 QS87 Orbit Class : MBA Star Designation : GDR3 2689232238394903808 Star Coordinates (ICRF) : RA = 21 16 29.7112, DE = -00 54 13.015 [2] Star Magnitudes : G = 10.26 mag, RP = 9.8 mag, BP = 10.57 mag Object Magnitude : V = 18.73 mag Estimated Magnitude Drop : 8.5 mag Estimated Max. Duration : 0.4 sec Object Mean Diameter : 5.8 km (src: astorb) Speed of the shadow : 15.6 km/s Elongation to Moon & Sun : 160° (sunlit = 0%), Sun = 166° Cross-track uncertainty : 0.3 mas = 0 km = 0.09 path-width (1-sig) RUWE and duplicate source : 1.04 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#55 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

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