Cora»Occultation

2023-11-28 / UCAC4 457-121889 / (798) Ruth

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	William Stewart	O+	VID	M279	GB	GPS	20:04:05	20:05:14.000	20:05:17.200	20:06:31	0.6	0.6	3.20	27.5

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#81 : 420b6460-ddb4-11f0-547e-fabebfafd22b [db: observed]

Using prediction 420b6460-ddb4-11f0-547e-fabebfafd22b for map and profile fit

Get observations as KML file (reduced site location resolution)

Sky projection (artificial light) for occ. time: 2023-11-28, 20:04 UT (JD = 2460277.336)

DAMIT	Q	P (h)	λ, β	JD0	JD-JD0	φ0	Version	Modified	Vol-equiv D	Cmnt
# 1063	3.0	8.551	84°, 27°	2.447533e6	12744.3	0.0°	None	2017-04-03	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] : 420b6460-ddb4-11f0-547e-fabebfafd22b [observed] Occultation Date + Time : 2023-11-28 at 20:04:36 UT +/- 0.0 min [1] Object Designation : (798) Ruth Orbit Class : MBA Star Designation : GDR3 2645525998355665664 Star Coordinates (ICRF) : RA = 23 28 42.9003, DE = +01 14 10.334 [2] Star Magnitudes : G = 14.94 mag, RP = 14.44 mag, BP = 15.28 mag Object Magnitude : V = 15.15 mag Estimated Magnitude Drop : 0.9 mag Estimated Max. Duration : 5.0 sec Object Mean Diameter : 43.2 km (src: astorb) Speed of the shadow : 8.6 km/s Elongation to Moon & Sun : 90° (sunlit = 98%), Sun = 107° Cross-track uncertainty : 0.4 mas = 0 km = 0.02 path-width (1-sig) RUWE and duplicate source : 1.09 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#81 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

Occultation UUID [and DB] : 420b6460-ddb4-11f0-547e-fabebfafd22b [observed] Occultation Date + Time : 2023-11-28 at 20:04:36 UT +/- 0.0 min [1] Object Designation : (798) Ruth Orbit Class : MBA Star Designation : GDR3 2645525998355665664 Star Coordinates (ICRF) : RA = 23 28 42.9003, DE = +01 14 10.334 [2] Star Magnitudes : G = 14.94 mag, RP = 14.44 mag, BP = 15.28 mag Object Magnitude : V = 15.15 mag Estimated Magnitude Drop : 0.9 mag Estimated Max. Duration : 5.0 sec Object Mean Diameter : 43.2 km (src: astorb) Speed of the shadow : 8.6 km/s Elongation to Moon & Sun : 90° (sunlit = 98%), Sun = 107° Cross-track uncertainty : 0.4 mas = 0 km = 0.02 path-width (1-sig) RUWE and duplicate source : 1.09 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#81 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

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