Collaborative Occultation Resources and Archive (CORA)

2023-11-18 / UCAC4 546-001436 / (2414) Vibeke

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Andrea Manna	O+	VID	M200	CH	GPS	00:14:05	00:17:31.72	00:17:34.76	00:20:03	0.16	0.16	3.04	18.5
2	show	Stefano Sposetti	O+	VID	M420	CH	GPS	00:14:30	0:17:31.22	0:17:35.35	00:20:30	0.12	0.16	4.13	25.2

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#53 : 26264204-962c-4464-bfb2-0bfd235a7f30 [db: observed]

JPL#57 : 5c0ec5d0-c340-11ef-5276-eea2af7e904a [db: observed]

Using prediction 26264204-962c-4464-bfb2-0bfd235a7f30 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 = 536.7, 30.8 km
Circular diameter = 27 km

From 2 chords (VID)

You can enter space separated chord numbers (example: 11 4 8) or a method like VIS to ignore all visual timings, or a time source like RAD and NTP (but not GPS).
If the plot disappears, then there are less than 2 chords left (too much ignored, go back with browser).

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Map with groundtrack and observer stations

Event Details
Occultation UUID [and DB] : 26264204-962c-4464-bfb2-0bfd235a7f30 [observed] Occultation Date + Time : 2023-11-18 at 00:29:45 UT +/- 0.04 min [1] Object Designation : (2414) Vibeke Orbit Class : MBA Star Designation : GDR3 2795201176214877312 Star Coordinates (ICRF) : RA = 00 42 50.3600, DE = +19 09 21.405 [2] Star Magnitudes : G = 13.29 mag, RP = 12.68 mag, BP = 13.72 mag Object Magnitude : V = 16.23 mag Estimated Magnitude Drop : 3.0 mag Estimated Max. Duration : 5.2 sec Object Mean Diameter : 31.8 km (src: astorb) Speed of the shadow : 6.1 km/s Elongation to Moon & Sun : 85° (sunlit = 24%), Sun = 140° Cross-track uncertainty : 9.0 mas = 12 km = 0.40 path-width (1-sig) RUWE and duplicate source : 1.09 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#53 [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and DB] : 26264204-962c-4464-bfb2-0bfd235a7f30 [observed]

 Occultation Date + Time   : 2023-11-18 at 00:29:45 UT +/- 0.04 min  [1]
 Object Designation        : (2414) Vibeke
 Orbit Class               : MBA
 Star Designation          : GDR3 2795201176214877312
 Star Coordinates (ICRF)   : RA = 00 42 50.3600, DE = +19 09 21.405  [2]
 Star Magnitudes           : G = 13.29 mag, RP = 12.68 mag, BP = 13.72 mag
 Object Magnitude          : V = 16.23 mag
 Estimated Magnitude Drop  : 3.0 mag
 Estimated Max. Duration   : 5.2 sec
 Object Mean Diameter      : 31.8 km  (src: astorb)
 Speed of the shadow       : 6.1 km/s
 Elongation to Moon & Sun  : 85° (sunlit = 24%), Sun = 140°
 Cross-track uncertainty   : 9.0 mas = 12 km = 0.40 path-width (1-sig)
 RUWE and duplicate source : 1.09 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#53

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

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