Cora»Occultation

2025-12-09 / UCAC4 636-027159 / (255) Oppavia

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Michal Rottenborn	O-	VID	M254	CZ	GPS	20:37:02	::	::	20:39:02
2	show	Jiri Kubanek	O-	VID	M303	CZ	GPS	20:36:57	::	::	20:38:58

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#78 : d31e3aa0-ddb8-11f0-547e-dbaec7f7f066 [db: observed]

Using prediction d31e3aa0-ddb8-11f0-547e-dbaec7f7f066 for map and profile fit

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Event Details
Occultation UUID [and DB] : d31e3aa0-ddb8-11f0-547e-dbaec7f7f066 [observed] Occultation Date + Time : 2025-12-09 at 20:33:54 UT +/- 0.01 min [1] Object Designation : (255) Oppavia Orbit Class : MBA Star Designation : GDR3 0189512511358644992 Star Coordinates (ICRF) : RA = 05 34 14.8781, DE = +37 04 03.204 [2] Star Magnitudes : G = 12.27 mag, RP = 11.06 mag, BP = 13.91 mag Object Magnitude : V = 14.36 mag Estimated Magnitude Drop : 2.2 mag Estimated Max. Duration : 4.8 sec Object Mean Diameter : 57.4 km (src: astorb) Speed of the shadow : 12.0 km/s Elongation to Moon & Sun : 60° (sunlit = 71%), Sun = 165° Cross-track uncertainty : 0.4 mas = 0 km = 0.01 path-width (1-sig) RUWE and duplicate source : 0.92 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#78 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

Occultation UUID [and DB] : d31e3aa0-ddb8-11f0-547e-dbaec7f7f066 [observed] Occultation Date + Time : 2025-12-09 at 20:33:54 UT +/- 0.01 min [1] Object Designation : (255) Oppavia Orbit Class : MBA Star Designation : GDR3 0189512511358644992 Star Coordinates (ICRF) : RA = 05 34 14.8781, DE = +37 04 03.204 [2] Star Magnitudes : G = 12.27 mag, RP = 11.06 mag, BP = 13.91 mag Object Magnitude : V = 14.36 mag Estimated Magnitude Drop : 2.2 mag Estimated Max. Duration : 4.8 sec Object Mean Diameter : 57.4 km (src: astorb) Speed of the shadow : 12.0 km/s Elongation to Moon & Sun : 60° (sunlit = 71%), Sun = 165° Cross-track uncertainty : 0.4 mas = 0 km = 0.01 path-width (1-sig) RUWE and duplicate source : 0.92 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#78 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

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