Cora»Occultation

2025-11-21 / UCAC4 558-017311 / (116557) 2004 BC80

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4
1	show	Deborah Smith	O-	VID	M300	ES	GPS	05:22:30	::	::	05:24:30
2	show	Deborah Smith	O-	VID	M235	ES	NTP	05:22:36	::	::	05:24:37
3	show	Deborah Smith, Eric Smith	O-	VID	M150	ES	GPS	05:22:35	::	::	05:24:35

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

3 observations found in db: sodis

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

JPL#40 : bd0b22f0-ddb8-11f0-547e-ae9ff6fdd54f [db: observed]

Using prediction bd0b22f0-ddb8-11f0-547e-ae9ff6fdd54f for map and profile fit

Get observations as KML file (reduced site location resolution)

Map with groundtrack and observer stations

Event Details
Occultation UUID [and DB] : bd0b22f0-ddb8-11f0-547e-ae9ff6fdd54f [observed] Occultation Date + Time : 2025-11-21 at 05:32:47 UT +/- 0.12 min [1] Object Designation : (116557) 2004 BC80 Orbit Class : MBA Star Designation : GDR3 3403652322411491072 Star Coordinates (ICRF) : RA = 05 32 51.8891, DE = +21 24 49.937 [2] Star Magnitudes : G = 14.04 mag, RP = 13.0 mag, BP = 14.31 mag Object Magnitude : V = 19.45 mag Estimated Magnitude Drop : 5.4 mag Estimated Max. Duration : 0.3 sec Object Mean Diameter : 2.6 km (src: astorb) Speed of the shadow : 7.8 km/s Elongation to Moon & Sun : 164° (sunlit = 1%), Sun = 155° Cross-track uncertainty : 26.1 mas = 31 km = 12.24 path-width (1-sig) RUWE and duplicate source : 17.68 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#40 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

Occultation UUID [and DB] : bd0b22f0-ddb8-11f0-547e-ae9ff6fdd54f [observed] Occultation Date + Time : 2025-11-21 at 05:32:47 UT +/- 0.12 min [1] Object Designation : (116557) 2004 BC80 Orbit Class : MBA Star Designation : GDR3 3403652322411491072 Star Coordinates (ICRF) : RA = 05 32 51.8891, DE = +21 24 49.937 [2] Star Magnitudes : G = 14.04 mag, RP = 13.0 mag, BP = 14.31 mag Object Magnitude : V = 19.45 mag Estimated Magnitude Drop : 5.4 mag Estimated Max. Duration : 0.3 sec Object Mean Diameter : 2.6 km (src: astorb) Speed of the shadow : 7.8 km/s Elongation to Moon & Sun : 164° (sunlit = 1%), Sun = 155° Cross-track uncertainty : 26.1 mas = 31 km = 12.24 path-width (1-sig) RUWE and duplicate source : 17.68 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#40 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

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