Cora»Occultation

2024-08-20 / UCAC4 548-142085 / (211538) 2003 RD18

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Deborah Smith	O-	CCD	M235	ES	NTP	01:58:02			02:05:58

UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

1 observation found in db: sodis

Available (probably) matching predictions (click on the link to switch):

JPL#26 : 42f7a3b0-ddb5-11f0-547e-a681dc574d66 [db: observed]

Using prediction 42f7a3b0-ddb5-11f0-547e-a681dc574d66 for map and profile fit

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Event Details
Occultation UUID [and DB] : 42f7a3b0-ddb5-11f0-547e-a681dc574d66 [observed] Occultation Date + Time : 2024-08-20 at 02:04:33 UT +/- 0.05 min [1] Object Designation : (211538) 2003 RD18 Orbit Class : MBA Star Designation : GDR3 1786475463334440064 Star Coordinates (ICRF) : RA = 21 39 43.4027, DE = +19 32 45.138 [2] Star Magnitudes : G = 11.32 mag, RP = 10.52 mag, BP = 12.02 mag Object Magnitude : V = 19.94 mag Estimated Magnitude Drop : 8.6 mag Estimated Max. Duration : 0.2 sec Object Mean Diameter : 2.5 km (src: astorb) Speed of the shadow : 11.8 km/s Elongation to Moon & Sun : 35° (sunlit = 100%), Sun = 148° Cross-track uncertainty : 24.0 mas = 32 km = 12.84 path-width (1-sig) RUWE and duplicate source : 1.04 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#26 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

Occultation UUID [and DB] : 42f7a3b0-ddb5-11f0-547e-a681dc574d66 [observed] Occultation Date + Time : 2024-08-20 at 02:04:33 UT +/- 0.05 min [1] Object Designation : (211538) 2003 RD18 Orbit Class : MBA Star Designation : GDR3 1786475463334440064 Star Coordinates (ICRF) : RA = 21 39 43.4027, DE = +19 32 45.138 [2] Star Magnitudes : G = 11.32 mag, RP = 10.52 mag, BP = 12.02 mag Object Magnitude : V = 19.94 mag Estimated Magnitude Drop : 8.6 mag Estimated Max. Duration : 0.2 sec Object Mean Diameter : 2.5 km (src: astorb) Speed of the shadow : 11.8 km/s Elongation to Moon & Sun : 35° (sunlit = 100%), Sun = 148° Cross-track uncertainty : 24.0 mas = 32 km = 12.84 path-width (1-sig) RUWE and duplicate source : 1.04 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#26 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

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