Cora»Occultation

2023-07-08 / UCAC4 336-116080 / (171) Ophelia

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Matthieu Conjat	O+	VID	T400	FR	GPS	21:41:15	21:42:48.61	21:42:57.04	21:44:10	0.25	0.25	8.43	99.5

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#157 : 4b807de0-ddb0-11f0-547e-eafde7ab9512 [db: observed]

Using prediction 4b807de0-ddb0-11f0-547e-eafde7ab9512 for map and profile fit

Get observations as KML file (reduced site location resolution)

Sky projection (artificial light) for occ. time: 2023-07-08, 21:41 UT (JD = 2460134.403)

DAMIT	Q	P (h)	λ, β	JD0	JD-JD0	φ0	Version	Modified	Vol-equiv D	Cmnt
# 1169	None	6.665	144°, 29°	2.443159e6	16975.4	0.0°	None	None	not scaled	2016-01-04
# 1170	None	6.665	329°, 23°	2.443159e6	16975.4	0.0°	None	None	not scaled	2016-01-04

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] : 4b807de0-ddb0-11f0-547e-eafde7ab9512 [observed] Occultation Date + Time : 2023-07-08 at 21:42:22 UT +/- 0.01 min [1] Object Designation : (171) Ophelia Orbit Class : MBA Star Designation : GDR3 4068709282260118272 Star Coordinates (ICRF) : RA = 17 50 32.5238, DE = -22 58 40.128 [2] Star Magnitudes : G = 14.03 mag, RP = 12.66 mag, BP = 16.29 mag Object Magnitude : V = 13.45 mag Estimated Magnitude Drop : 0.5 mag Estimated Max. Duration : 9.9 sec Object Mean Diameter : 116.7 km (src: astorb) Speed of the shadow : 11.8 km/s Elongation to Moon & Sun : 94° (sunlit = 63%), Sun = 161° Cross-track uncertainty : 0.7 mas = 1 km = 0.01 path-width (1-sig) RUWE and duplicate source : 0.92 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#157 Note : FP:true Object is a Gaia mass determination target ! [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

Occultation UUID [and DB] : 4b807de0-ddb0-11f0-547e-eafde7ab9512 [observed] Occultation Date + Time : 2023-07-08 at 21:42:22 UT +/- 0.01 min [1] Object Designation : (171) Ophelia Orbit Class : MBA Star Designation : GDR3 4068709282260118272 Star Coordinates (ICRF) : RA = 17 50 32.5238, DE = -22 58 40.128 [2] Star Magnitudes : G = 14.03 mag, RP = 12.66 mag, BP = 16.29 mag Object Magnitude : V = 13.45 mag Estimated Magnitude Drop : 0.5 mag Estimated Max. Duration : 9.9 sec Object Mean Diameter : 116.7 km (src: astorb) Speed of the shadow : 11.8 km/s Elongation to Moon & Sun : 94° (sunlit = 63%), Sun = 161° Cross-track uncertainty : 0.7 mas = 1 km = 0.01 path-width (1-sig) RUWE and duplicate source : 0.92 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#157 Note : FP:true Object is a Gaia mass determination target !
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

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