Cora»Occultation

2023-08-19 / UCAC4 568-100287 / (914) Palisana

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Jiri Kubanek	O+	VID	M200	CZ	GPS	23:34:14	23:36:19.38	23:36:23.91	23:38:17	0.12	0.04	4.53	24.5
2	show	Jean Bourgeois	O+	VID	M200	BE	GPS	23:35:01	23:37:56.99	23:38:03.39	23:40:00	0.16	0.16	6.40	34.6
3	show	Zdenek Sikac	O+	VID	T150	CZ	NTP	23:34:02	23:36:17.74	23:36:26.73	23:38:02	0.10	0.10	8.99	48.5
4	show	Marcin Filipek	O+	VID	M250	PL	GPS	23:34:45	23:35:13.78	23:35:27.52	23:35:46	0.07	0.07	13.74	74.2
5	show	Olivier Schreurs	O+	VID	M410	BE	GPS	23:36:51	23:37:48.87	23:38:02.31	23:38:52	0.08	0.08	13.44	72.6
6	show	Tim Haymes	O-	VID	M280	GB	GPS	23:37:00			23:43:00

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

6 observations found in db: sodis

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

JPL#84 : f2e65070-ddb3-11f0-547e-4c16fffa1b8f [db: observed]

Using prediction f2e65070-ddb3-11f0-547e-4c16fffa1b8f 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:
Size = 203 x 85 km
a',b' = 101.4, 42.6 km
X0,Y0 = 594.5, 84.4 km
Mean diameter = 131 km

From 5 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).

Check SiMDA for size and mass data.

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Map with groundtrack and observer stations

Event Details
Occultation UUID [and DB] : f2e65070-ddb3-11f0-547e-4c16fffa1b8f [observed] Occultation Date + Time : 2023-08-19 at 23:45:51 UT +/- 0.01 min [1] Object Designation : (914) Palisana Orbit Class : MBA Star Designation : GDR3 1833349778655891840 Star Coordinates (ICRF) : RA = 19 59 15.0677, DE = +23 32 23.637 [2] Star Magnitudes : G = 12.64 mag, RP = 11.58 mag, BP = 13.79 mag Object Magnitude : V = 11.82 mag Estimated Magnitude Drop : 0.4 mag Estimated Max. Duration : 14.2 sec Object Mean Diameter : 76.6 km (src: astorb) Speed of the shadow : 5.4 km/s Elongation to Moon & Sun : 112° (sunlit = 11%), Sun = 134° Cross-track uncertainty : 2.0 mas = 1 km = 0.02 path-width (1-sig) RUWE and duplicate source : 1.04 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#84 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and DB] : f2e65070-ddb3-11f0-547e-4c16fffa1b8f [observed]

 Occultation Date + Time   : 2023-08-19 at 23:45:51 UT +/- 0.01 min  [1]
 Object Designation        : (914) Palisana
 Orbit Class               : MBA
 Star Designation          : GDR3 1833349778655891840
 Star Coordinates (ICRF)   : RA = 19 59 15.0677, DE = +23 32 23.637  [2]
 Star Magnitudes           : G = 12.64 mag, RP = 11.58 mag, BP = 13.79 mag
 Object Magnitude          : V = 11.82 mag
 Estimated Magnitude Drop  : 0.4 mag
 Estimated Max. Duration   : 14.2 sec
 Object Mean Diameter      : 76.6 km  (src: astorb)
 Speed of the shadow       : 5.4 km/s
 Elongation to Moon & Sun  : 112° (sunlit = 11%), Sun = 134°
 Cross-track uncertainty   : 2.0 mas = 1 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 1.04 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#84
 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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