Cora»Occultation

2025-08-29 / UCAC4 480-002289 / (2807) Karl Marx

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Marek Harman	O-	VID	M350	SK	NTP	01:40:37	::	::	01:44:28

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#62 : 55815ba0-ddb7-11f0-547e-0e5cfd7d7159 [db: observed]

Using prediction 55815ba0-ddb7-11f0-547e-0e5cfd7d7159 for map and profile fit

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Event Details
Occultation UUID [and DB] : 55815ba0-ddb7-11f0-547e-0e5cfd7d7159 [observed] Occultation Date + Time : 2025-08-29 at 01:42:34 UT +/- 0.02 min [1] Object Designation : (2807) Karl Marx Orbit Class : MBA Star Designation : GDR3 2565002370942046720 Star Coordinates (ICRF) : RA = 01 34 09.2955, DE = +05 59 45.553 [2] Star Magnitudes : G = 12.7 mag, RP = 12.26 mag, BP = 12.99 mag Object Magnitude : V = 17.84 mag Estimated Magnitude Drop : 5.1 mag Estimated Max. Duration : 2.7 sec Object Mean Diameter : 8.4 km (src: astorb) Speed of the shadow : 3.2 km/s Elongation to Moon & Sun : 160° (sunlit = 30%), Sun = 132° Cross-track uncertainty : 1.0 mas = 1 km = 0.18 path-width (1-sig) RUWE and duplicate source : 0.94 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#62 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

Occultation UUID [and DB] : 55815ba0-ddb7-11f0-547e-0e5cfd7d7159 [observed] Occultation Date + Time : 2025-08-29 at 01:42:34 UT +/- 0.02 min [1] Object Designation : (2807) Karl Marx Orbit Class : MBA Star Designation : GDR3 2565002370942046720 Star Coordinates (ICRF) : RA = 01 34 09.2955, DE = +05 59 45.553 [2] Star Magnitudes : G = 12.7 mag, RP = 12.26 mag, BP = 12.99 mag Object Magnitude : V = 17.84 mag Estimated Magnitude Drop : 5.1 mag Estimated Max. Duration : 2.7 sec Object Mean Diameter : 8.4 km (src: astorb) Speed of the shadow : 3.2 km/s Elongation to Moon & Sun : 160° (sunlit = 30%), Sun = 132° Cross-track uncertainty : 1.0 mas = 1 km = 0.18 path-width (1-sig) RUWE and duplicate source : 0.94 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#62 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

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