Cora»Occultation

2024-09-20 / UCAC4 435-121481 / (82) Alkmene

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Peter Nosal	O+	VID	M200	SK	NTP	21:29:52	21:31:50.05	21:31:54.05	21:33:55	0.08	0.08	4.00	57.6
2	show	Christian Weber	O-	VID	T203	DE	GPS	21:31:15			21:32:38

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

2 observations found in db: sodis

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

JPL#150 : 6d7a8350-ddb5-11f0-547e-6827bafdf051 [db: observed]

Using prediction 6d7a8350-ddb5-11f0-547e-6827bafdf051 for map and profile fit

Get observations as KML file (reduced site location resolution)

Sky projection (artificial light) for occ. time: 2024-09-20, 21:30 UT (JD = 2460574.396)

DAMIT	Q	P (h)	λ, β	JD0	JD-JD0	φ0	Version	Modified	Vol-equiv D	Cmnt
# 146	None	13.001	164°, -28°	2.444189e6	16385.4	0.0°	None	2011-10-11	not scaled	2011-04-19
# 147	None	13.001	349°, -33°	2.444189e6	16385.4	0.0°	None	2011-10-11	not scaled	2011-04-19

Q: model quality flag (0-5, 5=highest) | P: rotation period | λ,β: ecl. lon. and lat. of spin axis (J2000) | JD: initial time (epoch) | φ0: initial rotation angle for JD0

Image size: 300px. Transparent image background for copy & paste

Map with groundtrack and observer stations

Event Details
Occultation UUID [and DB] : 6d7a8350-ddb5-11f0-547e-6827bafdf051 [observed] Occultation Date + Time : 2024-09-20 at 21:32:40 UT +/- 0.01 min [1] Object Designation : (82) Alkmene Orbit Class : MBA Star Designation : GDR3 2447422487253806208 Star Coordinates (ICRF) : RA = 23 51 11.7079, DE = -03 05 42.242 [2] Star Magnitudes : G = 13.19 mag, RP = 12.65 mag, BP = 13.56 mag Object Magnitude : V = 12.52 mag Estimated Magnitude Drop : 0.5 mag Estimated Max. Duration : 4.2 sec Object Mean Diameter : 61.0 km (src: astorb) Speed of the shadow : 14.4 km/s Elongation to Moon & Sun : 41° (sunlit = 89%), Sun = 177° Cross-track uncertainty : 1.3 mas = 2 km = 0.03 path-width (1-sig) RUWE and duplicate source : 1.02 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#150 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

Occultation UUID [and DB] : 6d7a8350-ddb5-11f0-547e-6827bafdf051 [observed] Occultation Date + Time : 2024-09-20 at 21:32:40 UT +/- 0.01 min [1] Object Designation : (82) Alkmene Orbit Class : MBA Star Designation : GDR3 2447422487253806208 Star Coordinates (ICRF) : RA = 23 51 11.7079, DE = -03 05 42.242 [2] Star Magnitudes : G = 13.19 mag, RP = 12.65 mag, BP = 13.56 mag Object Magnitude : V = 12.52 mag Estimated Magnitude Drop : 0.5 mag Estimated Max. Duration : 4.2 sec Object Mean Diameter : 61.0 km (src: astorb) Speed of the shadow : 14.4 km/s Elongation to Moon & Sun : 41° (sunlit = 89%), Sun = 177° Cross-track uncertainty : 1.3 mas = 2 km = 0.03 path-width (1-sig) RUWE and duplicate source : 1.02 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#150 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

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