Cora»Occultation

2025-09-21 / UCAC4 565-019038 / (6647) Josse

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Michal Rottenborn	O+	VID	M254	CZ	GPS	02:17:12	02:18:12.617	02:18:13.322	02:19:12	0.015	0.015	0.70	11.0
2	show	Jiri Polak	O-	VID	M300	CZ	NTP	02:17:12	::	::	02:19:12

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#55 : 6cf371a0-ddb8-11f0-547e-18db076a3cd7 [db: observed]

Using prediction 6cf371a0-ddb8-11f0-547e-18db076a3cd7 for map and profile fit

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Map with groundtrack and observer stations

Event Details
Occultation UUID [and DB] : 6cf371a0-ddb8-11f0-547e-18db076a3cd7 [observed] Occultation Date + Time : 2025-09-21 at 02:20:54 UT +/- 0.0 min [1] Object Designation : (6647) Josse Orbit Class : MBA Star Designation : GDR3 3404310036521503872 Star Coordinates (ICRF) : RA = 05 40 59.0560, DE = +22 58 36.628 [2] Star Magnitudes : G = 12.67 mag, RP = 12.17 mag, BP = 13.01 mag Object Magnitude : V = 18.91 mag Estimated Magnitude Drop : 6.2 mag Estimated Max. Duration : 0.2 sec Object Mean Diameter : 3.2 km (src: astorb) Speed of the shadow : 15.7 km/s Elongation to Moon & Sun : 84° (sunlit = 1%), Sun = 93° Cross-track uncertainty : 0.3 mas = 0 km = 0.11 path-width (1-sig) RUWE and duplicate source : 0.94 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] : 6cf371a0-ddb8-11f0-547e-18db076a3cd7 [observed] Occultation Date + Time : 2025-09-21 at 02:20:54 UT +/- 0.0 min [1] Object Designation : (6647) Josse Orbit Class : MBA Star Designation : GDR3 3404310036521503872 Star Coordinates (ICRF) : RA = 05 40 59.0560, DE = +22 58 36.628 [2] Star Magnitudes : G = 12.67 mag, RP = 12.17 mag, BP = 13.01 mag Object Magnitude : V = 18.91 mag Estimated Magnitude Drop : 6.2 mag Estimated Max. Duration : 0.2 sec Object Mean Diameter : 3.2 km (src: astorb) Speed of the shadow : 15.7 km/s Elongation to Moon & Sun : 84° (sunlit = 1%), Sun = 93° Cross-track uncertainty : 0.3 mas = 0 km = 0.11 path-width (1-sig) RUWE and duplicate source : 0.94 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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