Collaborative Occultation Resources and Archive (CORA)

2023-06-14 / UCAC4 359-174353 / (943) Begonia

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Peter Delincak	O+	VID	M400	SK	NTP	21:29:30	21:34:05.4	21:34:11.6	21:36:0.	0.8	0.8	6.20	89.3
2	show	Olivier Schreurs, Esteban Fernandez	O+	VID	M400	BE	GPS	21:33:50	21:34:48.400	21:34:52.500	21:35:50	1.000	1.000	4.10	59.0

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#68 : 0dd46b90-c336-11ef-5276-42ceffcf0e77 [db: observed]

Using prediction 0dd46b90-c336-11ef-5276-42ceffcf0e77 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:
Circular profile fit was not successful ...

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).

Check SiMDA for size and mass data.

Check Johnston Archive for satellites.

Sky projection (artificial light) for occ. time: 2023-06-14, 21:33 UT (JD = 2460110.398)

DAMIT	Q	P (h)	λ, β	JD0	JD-JD0	φ0	Version	Modified	Vol-equiv D	Cmnt
# 1722	2.0	15.659	222°, -54°	2.45076e6	9350.4	0.0°	None	2020-11-02	not scaled	2020-11-02
# 5905	2.0	15.659	99°, -80°	2.45076e6	9350.4	0.0°	None	2020-11-02	not scaled	2020-11-02

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] : 0dd46b90-c336-11ef-5276-42ceffcf0e77 [observed] Occultation Date + Time : 2023-06-14 at 21:32:44 UT +/- 0.0 min [1] Object Designation : (943) Begonia Orbit Class : MBA Star Designation : GDR3 4086793052995362176 Star Coordinates (ICRF) : RA = 18 54 04.6248, DE = -18 12 59.493 [2] Star Magnitudes : G = 15.25 mag, RP = 14.48 mag, BP = 15.87 mag Object Magnitude : V = 15.25 mag Estimated Magnitude Drop : 0.8 mag Estimated Max. Duration : 4.8 sec Object Mean Diameter : 69.2 km (src: astorb) Speed of the shadow : 14.4 km/s Elongation to Moon & Sun : 122° (sunlit = 11%), Sun = 160° Cross-track uncertainty : 0.4 mas = 0 km = 0.01 path-width (1-sig) RUWE and duplicate source : 0.93 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#68 [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and DB] : 0dd46b90-c336-11ef-5276-42ceffcf0e77 [observed]

 Occultation Date + Time   : 2023-06-14 at 21:32:44 UT +/- 0.0 min  [1]
 Object Designation        : (943) Begonia
 Orbit Class               : MBA
 Star Designation          : GDR3 4086793052995362176
 Star Coordinates (ICRF)   : RA = 18 54 04.6248, DE = -18 12 59.493  [2]
 Star Magnitudes           : G = 15.25 mag, RP = 14.48 mag, BP = 15.87 mag
 Object Magnitude          : V = 15.25 mag
 Estimated Magnitude Drop  : 0.8 mag
 Estimated Max. Duration   : 4.8 sec
 Object Mean Diameter      : 69.2 km  (src: astorb)
 Speed of the shadow       : 14.4 km/s
 Elongation to Moon & Sun  : 122° (sunlit = 11%), Sun = 160°
 Cross-track uncertainty   : 0.4 mas = 0 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 0.93 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#68

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

More Data and Informations

SiMDA \| 3D Asteroid Catalogue \| Johnston Archive \| Star at CDS (Vizier) \| JPL Small-Body Node \| Minor Planet Center \| Wikipedia

(If error 404: link not valid which means no data available)

Aladin Sky Atlas
18 54 4.625 -18 12 59.49 FoV: 29.96' +– × × Go to:
Aladin Lite direct link (has Gaia overlay)