Cora»Occultation

2024-10-07 / G222742.2-104632 / (225088) Gonggong

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Karl-Ludwig Bath, Tobias Steinbach, +1	O-	CCD	M510	NA	NTP	20:02:59			20:23:02
2	show	Karl-Ludwig Bath, Günter Hoffarth, +1	O-	CCD	M800	NA	NTP	19:57:54			20:16:00

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#22 : 4a364180-df9b-11f0-76c1-b4b4e5ece438 [db: special]

Using prediction 4a364180-df9b-11f0-76c1-b4b4e5ece438 for map and profile fit

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Map with groundtrack and observer stations

Event Details
Occultation UUID [and DB] : 4a364180-df9b-11f0-76c1-b4b4e5ece438 [special] Occultation Date + Time : 2024-10-07 at 20:14:38 UT +/- 1.16 min [1] Object Designation : (225088) Gonggong Orbit Class : TNO Star Designation : GDR3 2602857349400467456 Star Coordinates (ICRF) : RA = 22 27 42.2511, DE = -10 46 32.266 [2] Star Magnitudes : G = 18.99 mag, RP = 18.01 mag, BP = 20.05 mag Object Magnitude : V = 21.43 mag Estimated Magnitude Drop : 2.6 mag Estimated Max. Duration : 77.2 sec Object Mean Diameter : 1585.0 km (src: CORA) Speed of the shadow : 20.5 km/s Elongation to Moon & Sun : 84° (sunlit = 22%), Sun = 140° Cross-track uncertainty : 21.8 mas = 1404 km = 0.89 path-width (1-sig) RUWE and duplicate source : 1.09 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#22 Note : FP:true Object is a "TNOs are cool" target ! [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

Occultation UUID [and DB] : 4a364180-df9b-11f0-76c1-b4b4e5ece438 [special] Occultation Date + Time : 2024-10-07 at 20:14:38 UT +/- 1.16 min [1] Object Designation : (225088) Gonggong Orbit Class : TNO Star Designation : GDR3 2602857349400467456 Star Coordinates (ICRF) : RA = 22 27 42.2511, DE = -10 46 32.266 [2] Star Magnitudes : G = 18.99 mag, RP = 18.01 mag, BP = 20.05 mag Object Magnitude : V = 21.43 mag Estimated Magnitude Drop : 2.6 mag Estimated Max. Duration : 77.2 sec Object Mean Diameter : 1585.0 km (src: CORA) Speed of the shadow : 20.5 km/s Elongation to Moon & Sun : 84° (sunlit = 22%), Sun = 140° Cross-track uncertainty : 21.8 mas = 1404 km = 0.89 path-width (1-sig) RUWE and duplicate source : 1.09 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#22 Note : FP:true Object is a "TNOs are cool" target !
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

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