Cora»Occultation

2023-08-08 / TYC 5234-01564-1 / (52246) Donaldjohanson

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Konrad Guhl	O-	CCD	M306	DE	GPS	20:45:58			20:47:10
2	show	Mikhail Ashchepkau, Michel Turchenko	O-	VID	M150	BY	PHONE	20:44:56			20:46:08

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 : ea4377e0-ddb3-11f0-547e-7915bcb6110e [db: observed]

Using prediction ea4377e0-ddb3-11f0-547e-7915bcb6110e for map and profile fit

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Event Details
Occultation UUID [and DB] : ea4377e0-ddb3-11f0-547e-7915bcb6110e [observed] Occultation Date + Time : 2023-08-08 at 20:43:13 UT +/- 0.02 min [1] Object Designation : (52246) Donaldjohanson Orbit Class : MBA Star Designation : GDR3 2652752435449859328 Star Coordinates (ICRF) : RA = 22 41 11.5494, DE = -01 27 06.032 [2] Star Magnitudes : G = 8.89 mag, RP = 7.99 mag, BP = 9.75 mag Object Magnitude : V = 19.64 mag Estimated Magnitude Drop : 10.8 mag Estimated Max. Duration : 0.3 sec Object Mean Diameter : 2.6 km (src: astorb) Speed of the shadow : 9.9 km/s Elongation to Moon & Sun : 70° (sunlit = 45%), Sun = 154° Cross-track uncertainty : 3.7 mas = 4 km = 1.82 path-width (1-sig) RUWE and duplicate source : 1.1 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#22 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

Occultation UUID [and DB] : ea4377e0-ddb3-11f0-547e-7915bcb6110e [observed] Occultation Date + Time : 2023-08-08 at 20:43:13 UT +/- 0.02 min [1] Object Designation : (52246) Donaldjohanson Orbit Class : MBA Star Designation : GDR3 2652752435449859328 Star Coordinates (ICRF) : RA = 22 41 11.5494, DE = -01 27 06.032 [2] Star Magnitudes : G = 8.89 mag, RP = 7.99 mag, BP = 9.75 mag Object Magnitude : V = 19.64 mag Estimated Magnitude Drop : 10.8 mag Estimated Max. Duration : 0.3 sec Object Mean Diameter : 2.6 km (src: astorb) Speed of the shadow : 9.9 km/s Elongation to Moon & Sun : 70° (sunlit = 45%), Sun = 154° Cross-track uncertainty : 3.7 mas = 4 km = 1.82 path-width (1-sig) RUWE and duplicate source : 1.1 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#22 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

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