Cora»Occultation

2025-09-25 / UCAC4 321-194929 / (8810) Johnmcfarland

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Oscar Canales	O+	CCD	M280	ES	GPS	18:54:35	18:55:20.31	18:55:21.24	18:56:05	0.070	0.070	0.93	15.5

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#65 : 75b4a7a0-ddb8-11f0-547e-5f7ccaf3e66b [db: observed]

Using prediction 75b4a7a0-ddb8-11f0-547e-5f7ccaf3e66b for map and profile fit

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Event Details
Occultation UUID [and DB] : 75b4a7a0-ddb8-11f0-547e-5f7ccaf3e66b [observed] Occultation Date + Time : 2025-09-25 at 18:54:12 UT +/- 0.01 min [1] Object Designation : (8810) Johnmcfarland Orbit Class : MBA Star Designation : GDR3 4075988182259171072 Star Coordinates (ICRF) : RA = 18 34 35.9044, DE = -25 59 25.909 [2] Star Magnitudes : G = 11.62 mag, RP = 10.73 mag, BP = 12.46 mag Object Magnitude : V = 18.12 mag Estimated Magnitude Drop : 6.5 mag Estimated Max. Duration : 0.5 sec Object Mean Diameter : 7.6 km (src: astorb) Speed of the shadow : 16.7 km/s Elongation to Moon & Sun : 51° (sunlit = 14%), Sun = 95° Cross-track uncertainty : 0.3 mas = 0 km = 0.06 path-width (1-sig) RUWE and duplicate source : 0.75 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#65 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

Occultation UUID [and DB] : 75b4a7a0-ddb8-11f0-547e-5f7ccaf3e66b [observed] Occultation Date + Time : 2025-09-25 at 18:54:12 UT +/- 0.01 min [1] Object Designation : (8810) Johnmcfarland Orbit Class : MBA Star Designation : GDR3 4075988182259171072 Star Coordinates (ICRF) : RA = 18 34 35.9044, DE = -25 59 25.909 [2] Star Magnitudes : G = 11.62 mag, RP = 10.73 mag, BP = 12.46 mag Object Magnitude : V = 18.12 mag Estimated Magnitude Drop : 6.5 mag Estimated Max. Duration : 0.5 sec Object Mean Diameter : 7.6 km (src: astorb) Speed of the shadow : 16.7 km/s Elongation to Moon & Sun : 51° (sunlit = 14%), Sun = 95° Cross-track uncertainty : 0.3 mas = 0 km = 0.06 path-width (1-sig) RUWE and duplicate source : 0.75 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#65 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

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