Cora»Occultation

2023-05-09 / UCAC4 369-073089 / (20533) Irmabonham

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Christian Weber	O+	VID	T203	DE	GPS	23:02:42	23:03:32.720	23:03:33.360	23:04:12	0.16	0.16	0.64	6.7

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#53 : 9631b590-ddb3-11f0-547e-e349fefda083 [db: observed]

Using prediction 9631b590-ddb3-11f0-547e-e349fefda083 for map and profile fit

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Map with groundtrack and observer stations

Event Details
Occultation UUID [and DB] : 9631b590-ddb3-11f0-547e-e349fefda083 [observed] Occultation Date + Time : 2023-05-09 at 23:00:30 UT +/- 0.0 min [1] Object Designation : (20533) Irmabonham Orbit Class : MBA Star Designation : GDR3 6262363313177152128 Star Coordinates (ICRF) : RA = 15 56 31.2314, DE = -16 13 15.445 [2] Star Magnitudes : G = 12.97 mag, RP = 12.45 mag, BP = 13.32 mag Object Magnitude : V = 17.98 mag Estimated Magnitude Drop : 5.0 mag Estimated Max. Duration : 0.5 sec Object Mean Diameter : 5.1 km (src: astorb) Speed of the shadow : 10.4 km/s Elongation to Moon & Sun : 44° (sunlit = 79%), Sun = 168° Cross-track uncertainty : 0.7 mas = 0 km = 0.18 path-width (1-sig) RUWE and duplicate source : 1.06 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#53 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

Occultation UUID [and DB] : 9631b590-ddb3-11f0-547e-e349fefda083 [observed] Occultation Date + Time : 2023-05-09 at 23:00:30 UT +/- 0.0 min [1] Object Designation : (20533) Irmabonham Orbit Class : MBA Star Designation : GDR3 6262363313177152128 Star Coordinates (ICRF) : RA = 15 56 31.2314, DE = -16 13 15.445 [2] Star Magnitudes : G = 12.97 mag, RP = 12.45 mag, BP = 13.32 mag Object Magnitude : V = 17.98 mag Estimated Magnitude Drop : 5.0 mag Estimated Max. Duration : 0.5 sec Object Mean Diameter : 5.1 km (src: astorb) Speed of the shadow : 10.4 km/s Elongation to Moon & Sun : 44° (sunlit = 79%), Sun = 168° Cross-track uncertainty : 0.7 mas = 0 km = 0.18 path-width (1-sig) RUWE and duplicate source : 1.06 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#53 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

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