Cora»Occultation

2023-04-27 / TYC 5590-00903-1 / (1071) Brita

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Daniel Blazewicz	O+	CCD	M350	PL	NTP	21:05:20	21:06:50.835	21:06:54.531	21:08:26	0.017	0.014	3.70	48.5
2	show	Marcin Filipek	O+	VID	M250	PL	GPS	21:06:50	21:06:52.800	21:06:56.490	21:06:59	0.01	0.01	3.69	48.3
3	show	Sven Andersson	O+	VID	M360	DE	GPS	21:06:30	21:07:11.64	21:07:15.36	21:08:31	0.16	0.19	3.72	48.7
4	show	Anna Marciniak	O-	CCD	M350	PL	GPS	21:06:00			21:08:00
5	show	Konrad Guhl	O-	CCD	M306	DE	GPS	21:04:00			21:09:00

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

5 observations found in db: sodis

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

JPL#73 : 960b68e0-ddb3-11f0-547e-ec7cf919c3e5 [db: observed]

Using prediction 960b68e0-ddb3-11f0-547e-ec7cf919c3e5 for map and profile fit

Get observations as KML file (reduced site location resolution)

Ellipse and circular profile fits to the timings (chords)

Auto-Fit Result:
Ellipse profile fit was not successful. Trying circular fit.

Circular diameter = 54 km

From 3 chords (CCD,VID)

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Map with groundtrack and observer stations

Event Details
Occultation UUID [and DB] : 960b68e0-ddb3-11f0-547e-ec7cf919c3e5 [observed] Occultation Date + Time : 2023-04-27 at 21:02:58 UT +/- 0.0 min [1] Object Designation : (1071) Brita Orbit Class : MBA Star Designation : GDR3 6310098026377165056 Star Coordinates (ICRF) : RA = 14 48 59.6678, DE = -14 42 14.511 [2] Star Magnitudes : G = 10.57 mag, RP = 10.37 mag, BP = 10.69 mag Object Magnitude : V = 14.88 mag Estimated Magnitude Drop : 4.3 mag Estimated Max. Duration : 3.8 sec Object Mean Diameter : 50.3 km (src: astorb) Speed of the shadow : 13.1 km/s Elongation to Moon & Sun : 97° (sunlit = 50%), Sun = 173° Cross-track uncertainty : 0.9 mas = 1 km = 0.03 path-width (1-sig) RUWE and duplicate source : 1.87 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#73 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and DB] : 960b68e0-ddb3-11f0-547e-ec7cf919c3e5 [observed]

 Occultation Date + Time   : 2023-04-27 at 21:02:58 UT +/- 0.0 min  [1]
 Object Designation        : (1071) Brita
 Orbit Class               : MBA
 Star Designation          : GDR3 6310098026377165056
 Star Coordinates (ICRF)   : RA = 14 48 59.6678, DE = -14 42 14.511  [2]
 Star Magnitudes           : G = 10.57 mag, RP = 10.37 mag, BP = 10.69 mag
 Object Magnitude          : V = 14.88 mag
 Estimated Magnitude Drop  : 4.3 mag
 Estimated Max. Duration   : 3.8 sec
 Object Mean Diameter      : 50.3 km  (src: astorb)
 Speed of the shadow       : 13.1 km/s
 Elongation to Moon & Sun  : 97° (sunlit = 50%), Sun = 173°
 Cross-track uncertainty   : 0.9 mas = 1 km = 0.03 path-width (1-sig)
 RUWE and duplicate source : 1.87 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#73
 Note                      : FP:true

 
 [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

More Data and Informations

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