Cora»Occultation

2023-11-07 / UCAC4 591-019634 / (210) Isabella

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Marek Zawilski, Mieczyslaw Borkowski	O+	VID	M200	PL	GPS	00:13:46	00:14:23.9	00:14:47.2	00:15:42	0.4	0.3	23.30	111.8
2	show	Marek Zawilski, Mieczyslaw Borkowski	O+	VID	M200	PL	GPS	00:13:46	00:14:32.3	00:14:41.5	00:15:42	0.4	0.6	9.20	44.2
3	show	Daniel Antuszewicz	O-	VID	M200	PL	NTP	00:13:16			00:15:16

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

3 observations found in db: sodis

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

JPL#142 : 37614a20-ddb4-11f0-547e-d7dcdf7f9c88 [db: observed]

Using prediction 37614a20-ddb4-11f0-547e-d7dcdf7f9c88 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 ...

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Sky projection (artificial light) for occ. time: 2023-11-07, 00:14 UT (JD = 2460255.510)

DAMIT	Q	P (h)	λ, β	JD0	JD-JD0	φ0	Version	Modified	Vol-equiv D	Cmnt
# 987	None	6.672	278°, -26°	2.450875e6	9380.5	0.0°	None	None	not scaled	2016-01-04
# 988	None	6.672	100°, -14°	2.450875e6	9380.5	0.0°	None	None	not scaled	2016-01-04

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] : 37614a20-ddb4-11f0-547e-d7dcdf7f9c88 [observed] Occultation Date + Time : 2023-11-07 at 00:06:57 UT +/- 0.01 min [1] Object Designation : (210) Isabella Orbit Class : MBA Star Designation : GDR3 3442359353657524992 Star Coordinates (ICRF) : RA = 05 32 32.8633, DE = +28 04 19.550 [2] Star Magnitudes : G = 13.24 mag, RP = 12.51 mag, BP = 13.8 mag Object Magnitude : V = 13.09 mag Estimated Magnitude Drop : 0.7 mag Estimated Max. Duration : 18.1 sec Object Mean Diameter : 86.7 km (src: astorb) Speed of the shadow : 4.8 km/s Elongation to Moon & Sun : 68° (sunlit = 35%), Sun = 140° Cross-track uncertainty : 0.7 mas = 0 km = 0.01 path-width (1-sig) RUWE and duplicate source : 1.11 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#142 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and DB] : 37614a20-ddb4-11f0-547e-d7dcdf7f9c88 [observed]

 Occultation Date + Time   : 2023-11-07 at 00:06:57 UT +/- 0.01 min  [1]
 Object Designation        : (210) Isabella
 Orbit Class               : MBA
 Star Designation          : GDR3 3442359353657524992
 Star Coordinates (ICRF)   : RA = 05 32 32.8633, DE = +28 04 19.550  [2]
 Star Magnitudes           : G = 13.24 mag, RP = 12.51 mag, BP = 13.8 mag
 Object Magnitude          : V = 13.09 mag
 Estimated Magnitude Drop  : 0.7 mag
 Estimated Max. Duration   : 18.1 sec
 Object Mean Diameter      : 86.7 km  (src: astorb)
 Speed of the shadow       : 4.8 km/s
 Elongation to Moon & Sun  : 68° (sunlit = 35%), Sun = 140°
 Cross-track uncertainty   : 0.7 mas = 0 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 1.11 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#142
 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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