Collaborative Occultation Resources and Archive (CORA)

2024-10-23 / UCAC4 447-001530 / (1562) Gondolatsch

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Jean-Louis Dumont	O+	VID	M400	FR	GPS	20:21:00	20:23:08.70	20:23:09.74	20:25:00	0.08	0.08	1.04	11.0
2	show	Oliver Kloes	O+	CCD	M254	DE	GPS	20:21:10	20:22:10.4	20:22:11.6	20:23:10	0.2	0.2	1.20	12.7

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#66 : 7c0b52f0-c358-11ef-5276-aeefcdf31cbc [db: observed]

JPL#64 : 110df060-8759-11ef-78cd-f3e8bdeb40bd [db: asteroids]

JPL#64 : 21303410-830f-11ef-6618-ec61ef783929 [db: asteroids]

Using prediction 7c0b52f0-c358-11ef-5276-aeefcdf31cbc 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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If the plot disappears, then there are less than 2 chords left (too much ignored, go back with browser).

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Sky projection (artificial light) for occ. time: 2024-10-23, 20:22 UT (JD = 2460607.349)

DAMIT	Q	P (h)	λ, β	JD0	JD-JD0	φ0	Version	Modified	Vol-equiv D	Cmnt
# 4645	1.0	8.753	62°, 66°	2.45732e6	3287.3	0.0°	None	2020-10-05	not scaled	2019-10-23

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] : 7c0b52f0-c358-11ef-5276-aeefcdf31cbc [observed] Occultation Date + Time : 2024-10-23 at 20:21:39 UT +/- 0.0 min [1] Object Designation : (1562) Gondolatsch Orbit Class : MBA Star Designation : GDR3 2534450310060601984 Star Coordinates (ICRF) : RA = 01 14 46.7806, DE = -00 36 18.301 [2] Star Magnitudes : G = 13.99 mag, RP = 13.24 mag, BP = 14.6 mag Object Magnitude : V = 15.2 mag Estimated Magnitude Drop : 1.5 mag Estimated Max. Duration : 1.1 sec Object Mean Diameter : 11.5 km (src: astorb) Speed of the shadow : 10.6 km/s Elongation to Moon & Sun : 99° (sunlit = 55%), Sun = 164° Cross-track uncertainty : 0.7 mas = 0 km = 0.06 path-width (1-sig) RUWE and duplicate source : 1.06 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#66 [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and DB] : 7c0b52f0-c358-11ef-5276-aeefcdf31cbc [observed]

 Occultation Date + Time   : 2024-10-23 at 20:21:39 UT +/- 0.0 min  [1]
 Object Designation        : (1562) Gondolatsch
 Orbit Class               : MBA
 Star Designation          : GDR3 2534450310060601984
 Star Coordinates (ICRF)   : RA = 01 14 46.7806, DE = -00 36 18.301  [2]
 Star Magnitudes           : G = 13.99 mag, RP = 13.24 mag, BP = 14.6 mag
 Object Magnitude          : V = 15.2 mag
 Estimated Magnitude Drop  : 1.5 mag
 Estimated Max. Duration   : 1.1 sec
 Object Mean Diameter      : 11.5 km  (src: astorb)
 Speed of the shadow       : 10.6 km/s
 Elongation to Moon & Sun  : 99° (sunlit = 55%), Sun = 164°
 Cross-track uncertainty   : 0.7 mas = 0 km = 0.06 path-width (1-sig)
 RUWE and duplicate source : 1.06 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#66

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

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