Cora»Occultation

2024-06-29 / TYC 6255-00097-1 / (24656) 1987 QT7

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Matthieu Conjat, Florian Signoret	O+	VID	M355	FR	GPS	20:58:05	20:59:04.05	20:59:04.50	21:00:10	0.03	0.03	0.45	4.4

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

1 observation found in db: sodis

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

JPL#55 : ea67fa60-ddb4-11f0-547e-71bcff9bcaa8 [db: observed]

Using prediction ea67fa60-ddb4-11f0-547e-71bcff9bcaa8 for map and profile fit

Get observations as KML file (reduced site location resolution)

Sky projection (artificial light) for occ. time: 2024-06-29, 20:59 UT (JD = 2460491.374)

DAMIT	Q	P (h)	λ, β	JD0	JD-JD0	φ0	Version	Modified	Vol-equiv D	Cmnt
# 4915	1.0	128.760	90°, 26°	2.457509e6	2982.4	0.0°	None	2020-10-05	not scaled	2019-10-23
# 4916	1.0	128.730	273°, 26°	2.457509e6	2982.4	0.0°	None	2020-10-05	not scaled	2019-10-23

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] : ea67fa60-ddb4-11f0-547e-71bcff9bcaa8 [observed] Occultation Date + Time : 2024-06-29 at 20:55:17 UT +/- 0.01 min [1] Object Designation : (24656) 1987 QT7 Orbit Class : MBA Star Designation : GDR3 4095389172320163200 Star Coordinates (ICRF) : RA = 18 07 06.4087, DE = -18 36 49.483 [2] Star Magnitudes : G = 10.97 mag, RP = 10.49 mag, BP = 11.27 mag Object Magnitude : V = 18.02 mag Estimated Magnitude Drop : 7.1 mag Estimated Max. Duration : 0.3 sec Object Mean Diameter : 3.0 km (src: astorb) Speed of the shadow : 9.8 km/s Elongation to Moon & Sun : 109° (sunlit = 39%), Sun = 172° Cross-track uncertainty : 0.3 mas = 0 km = 0.09 path-width (1-sig) RUWE and duplicate source : 0.85 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] : ea67fa60-ddb4-11f0-547e-71bcff9bcaa8 [observed] Occultation Date + Time : 2024-06-29 at 20:55:17 UT +/- 0.01 min [1] Object Designation : (24656) 1987 QT7 Orbit Class : MBA Star Designation : GDR3 4095389172320163200 Star Coordinates (ICRF) : RA = 18 07 06.4087, DE = -18 36 49.483 [2] Star Magnitudes : G = 10.97 mag, RP = 10.49 mag, BP = 11.27 mag Object Magnitude : V = 18.02 mag Estimated Magnitude Drop : 7.1 mag Estimated Max. Duration : 0.3 sec Object Mean Diameter : 3.0 km (src: astorb) Speed of the shadow : 9.8 km/s Elongation to Moon & Sun : 109° (sunlit = 39%), Sun = 172° Cross-track uncertainty : 0.3 mas = 0 km = 0.09 path-width (1-sig) RUWE and duplicate source : 0.85 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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