Collaborative Occultation Resources and Archive (CORA)

2023-09-09 / UCAC4 362-200736 / (213) Lilaea

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Faustino Garcia	O+	VID	T250	ES	GPS	22:43:27	22:44:26.64	22:44:36.14	22:45:27	0.062	0.062	9.50	78.9
2	show	Karim Saci	O+	VID	M250	FR	GPS	22:42:34	22:42:52.28	22:43:01.98	22:43:36	0.05	0.05	9.70	80.5

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

2 observations found in db: sodis

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

JPL#131 : d542717d-7adb-47a8-b9bd-9f523d8e5ebd [db: observed]

JPL#136 : 52cb3d40-c33c-11ef-5276-f727ffff31bd [db: observed]

Using prediction d542717d-7adb-47a8-b9bd-9f523d8e5ebd 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:
X0,Y0 = 2514.9, 104.3 km
Circular diameter = 198 km

From 2 chords (VID)

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If the plot disappears, then there are less than 2 chords left (too much ignored, go back with browser).

Check SiMDA for size and mass data.

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Map with groundtrack and observer stations

Event Details
Occultation UUID [and DB] : d542717d-7adb-47a8-b9bd-9f523d8e5ebd [observed] Occultation Date + Time : 2023-09-09 at 22:48:19 UT +/- 0.04 min [1] Object Designation : (213) Lilaea Orbit Class : MBA Star Designation : GDR3 6825797257867813632 Star Coordinates (ICRF) : RA = 22 13 25.6477, DE = -17 45 29.991 [2] Star Magnitudes : G = 11.45 mag, RP = 11.01 mag, BP = 11.73 mag Object Magnitude : V = 12.52 mag Estimated Magnitude Drop : 1.4 mag Estimated Max. Duration : 9.9 sec Object Mean Diameter : 83.0 km (src: astorb) Speed of the shadow : 8.3 km/s Elongation to Moon & Sun : 142° (sunlit = 22%), Sun = 161° Cross-track uncertainty : 4.3 mas = 4 km = 0.06 path-width (1-sig) RUWE and duplicate source : 0.76 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#131 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] : d542717d-7adb-47a8-b9bd-9f523d8e5ebd [observed]

 Occultation Date + Time   : 2023-09-09 at 22:48:19 UT +/- 0.04 min  [1]
 Object Designation        : (213) Lilaea
 Orbit Class               : MBA
 Star Designation          : GDR3 6825797257867813632
 Star Coordinates (ICRF)   : RA = 22 13 25.6477, DE = -17 45 29.991  [2]
 Star Magnitudes           : G = 11.45 mag, RP = 11.01 mag, BP = 11.73 mag
 Object Magnitude          : V = 12.52 mag
 Estimated Magnitude Drop  : 1.4 mag
 Estimated Max. Duration   : 9.9 sec
 Object Mean Diameter      : 83.0 km  (src: astorb)
 Speed of the shadow       : 8.3 km/s
 Elongation to Moon & Sun  : 142° (sunlit = 22%), Sun = 161°
 Cross-track uncertainty   : 4.3 mas = 4 km = 0.06 path-width (1-sig)
 RUWE and duplicate source : 0.76 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#131

 Object is a Gaia mass determination target !

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

More Data and Informations

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