2023-06-10 / TYC 0841-00492-1 / (10856) Bechstein

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Michal Rottenborn	O+	VID	M254	CZ	GPS	22:17:34	22:19:33.43	22:19:34.15	22:21:24	0.05	0.05	0.72	14.7
2	show	Jiri Kubanek	O+	VID	M303	CZ	GPS	22:17:31	22:19:33.16	22:19:33.43	22:21:09	0.05	0.05	0.27	5.5
3	show	Jiri Kubanek	O+	VID	M303	CZ	GPS	22:17:31	22:19:33.58	22:19:33.71	22:21:09	0.05	0.05	0.13	2.7
4	show	Anna Marciniak	O-	CCD	M400	PL	GPS	22:18:29			22:20:00

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

4 observations found in db: sodis

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

JPL#70 : edcf0fa0-ddb3-11f0-547e-ddf3fd65b865 [db: observed]

Using prediction edcf0fa0-ddb3-11f0-547e-ddf3fd65b865 for map and profile fit

Ellipse and circular profile fits to the timings (chords)

Auto-Fit Result: Ellipse profile fit was not successful. Trying circular fit. Circular diameter = 16 km From 3 chords (VID) Chords to ignore: Fill: Grid: Show (close) miss chords: 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: 2023-06-10, 22:18 UT (JD = 2460106.429)

DAMIT	Q	P (h)	λ, β	JD0	JD-JD0	φ0	Version	Modified	Vol-equiv D	Cmnt
# 3377	1.0	11.244	258°, -12°	2.451159e6	8947.4	0.0°	None	2019-09-26	not scaled	2019-05-07

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

Map with groundtrack and observer stations

Event Details

Occultation UUID [and DB] : edcf0fa0-ddb3-11f0-547e-ddf3fd65b865 [observed] Occultation Date + Time : 2023-06-10 at 22:19:36 UT +/- 0.0 min [1] Object Designation : (10856) Bechstein Orbit Class : MBA Star Designation : GDR3 3883379514872724480 Star Coordinates (ICRF) : RA = 10 27 42.3613, DE = +11 37 45.451 [2] Star Magnitudes : G = 10.08 mag, RP = 9.42 mag, BP = 10.57 mag Object Magnitude : V = 19.25 mag Estimated Magnitude Drop : 9.2 mag Estimated Max. Duration : 0.5 sec Object Mean Diameter : 9.5 km (src: astorb) Speed of the shadow : 20.4 km/s Elongation to Moon & Sun : 163° (sunlit = 49%), Sun = 75° Cross-track uncertainty : 0.3 mas = 0 km = 0.09 path-width (1-sig) RUWE and duplicate source : 0.99 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#70 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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