Cora»Occultation

2024-12-07 / UCAC4 544-048948 / (1180) Rita

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Deborah Smith	O+	CCD	M280	ES	NTP	01:41:27	01:43:26.736	01:43:36.261	01:45:27	0.58	0.58	9.53	38.1
2	show	Deborah Smith	O-	CCD	M203	ES	NTP	01:41:20			01:45:20

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#81 : b76ba6b0-ddb5-11f0-547e-16ff7d4bfe6a [db: observed]

Using prediction b76ba6b0-ddb5-11f0-547e-16ff7d4bfe6a for map and profile fit

Get observations as KML file (reduced site location resolution)

Sky projection (artificial light) for occ. time: 2024-12-07, 01:43 UT (JD = 2460651.572)

DAMIT	Q	P (h)	λ, β	JD0	JD-JD0	φ0	Version	Modified	Vol-equiv D	Cmnt
# 4476	1.0	14.898	112°, 4°	2.45732e6	3331.6	0.0°	None	2020-10-05	not scaled	2019-10-23
# 4477	1.0	14.897	279°, -8°	2.45732e6	3331.6	0.0°	None	2020-10-05	not scaled	2019-10-23

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] : b76ba6b0-ddb5-11f0-547e-16ff7d4bfe6a [observed] Occultation Date + Time : 2024-12-07 at 01:46:55 UT +/- 0.07 min [1] Object Designation : (1180) Rita Orbit Class : MBA Star Designation : GDR3 0627172431895295232 Star Coordinates (ICRF) : RA = 09 53 03.1307, DE = +18 46 07.207 [2] Star Magnitudes : G = 13.03 mag, RP = 12.55 mag, BP = 13.34 mag Object Magnitude : V = 16.48 mag Estimated Magnitude Drop : 3.5 mag Estimated Max. Duration : 11.3 sec Object Mean Diameter : 45.0 km (src: astorb) Speed of the shadow : 4.0 km/s Elongation to Moon & Sun : 177° (sunlit = 33%), Sun = 111° Cross-track uncertainty : 1.0 mas = 2 km = 0.07 path-width (1-sig) RUWE and duplicate source : 1.15 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] : b76ba6b0-ddb5-11f0-547e-16ff7d4bfe6a [observed] Occultation Date + Time : 2024-12-07 at 01:46:55 UT +/- 0.07 min [1] Object Designation : (1180) Rita Orbit Class : MBA Star Designation : GDR3 0627172431895295232 Star Coordinates (ICRF) : RA = 09 53 03.1307, DE = +18 46 07.207 [2] Star Magnitudes : G = 13.03 mag, RP = 12.55 mag, BP = 13.34 mag Object Magnitude : V = 16.48 mag Estimated Magnitude Drop : 3.5 mag Estimated Max. Duration : 11.3 sec Object Mean Diameter : 45.0 km (src: astorb) Speed of the shadow : 4.0 km/s Elongation to Moon & Sun : 177° (sunlit = 33%), Sun = 111° Cross-track uncertainty : 1.0 mas = 2 km = 0.07 path-width (1-sig) RUWE and duplicate source : 1.15 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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