Cora»Occultation

2024-12-31 / UCAC4 517-009432 / (23409) Derzhavin

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Michal Rottenborn	O-	VID	M254	CZ	GPS	20:30:52			20:34:52

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#54 : ddb856b0-ddb5-11f0-547e-c831f2f10081 [db: observed]

Using prediction ddb856b0-ddb5-11f0-547e-c831f2f10081 for map and profile fit

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Event Details
Occultation UUID [and DB] : ddb856b0-ddb5-11f0-547e-c831f2f10081 [observed] Occultation Date + Time : 2024-12-31 at 20:27:56 UT +/- 0.01 min [1] Object Designation : (23409) Derzhavin Orbit Class : MBA Star Designation : GDR3 3296320677364313088 Star Coordinates (ICRF) : RA = 04 55 42.9752, DE = +13 22 11.122 [2] Star Magnitudes : G = 12.17 mag, RP = 11.08 mag, BP = 13.41 mag Object Magnitude : V = 17.21 mag Estimated Magnitude Drop : 5.1 mag Estimated Max. Duration : 0.8 sec Object Mean Diameter : 3.7 km (src: astorb) Speed of the shadow : 4.9 km/s Elongation to Moon & Sun : 140° (sunlit = 1%), Sun = 152° Cross-track uncertainty : 0.3 mas = 0 km = 0.06 path-width (1-sig) RUWE and duplicate source : 1.16 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#54 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

Occultation UUID [and DB] : ddb856b0-ddb5-11f0-547e-c831f2f10081 [observed] Occultation Date + Time : 2024-12-31 at 20:27:56 UT +/- 0.01 min [1] Object Designation : (23409) Derzhavin Orbit Class : MBA Star Designation : GDR3 3296320677364313088 Star Coordinates (ICRF) : RA = 04 55 42.9752, DE = +13 22 11.122 [2] Star Magnitudes : G = 12.17 mag, RP = 11.08 mag, BP = 13.41 mag Object Magnitude : V = 17.21 mag Estimated Magnitude Drop : 5.1 mag Estimated Max. Duration : 0.8 sec Object Mean Diameter : 3.7 km (src: astorb) Speed of the shadow : 4.9 km/s Elongation to Moon & Sun : 140° (sunlit = 1%), Sun = 152° Cross-track uncertainty : 0.3 mas = 0 km = 0.06 path-width (1-sig) RUWE and duplicate source : 1.16 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#54 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

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