Cora»Occultation

2026-09-30 / UCAC4 553-038040 / (322) Phaeo

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Zdenek Sikac	O+	VID	T150	CZ	GPS	04:13:55	04:14:54.02	04:14:56.84	04:15:56	0.090	0.090	2.82	60.6
2	show	Tomas Janik	O+	CCD	T600	CZ	GPS	04:13:00	04:14:55.48	04:14:56.43	04:15:54	0.050	0.050	0.95	20.4

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):

JPL89 : fd3ee680-d9b2-11f1-43f3-b26b7fdf88e7 [db: observed]

Using prediction fd3ee680-d9b2-11f1-43f3-b26b7fdf88e7 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:
X0,Y0 = -798.1, 26.0 km
Circular diameter = 69 km

From 2 chords (CCD,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.

Check Johnston Archive for satellites.

Sky projection (artificial light) for occ. time: 2026-09-30, 04:14 UT (JD = 2461313.676)

DAMIT	Q	P (h)	λ, β	JD0	JD-JD0	φ0	Version	Modified	Vol-equiv D	Cmnt
# 5151	1.0	17.573	77°, 12°	2.457241e6	4072.7	0.0°	None	2020-10-05	not scaled	2019-10-23
# 5152	1.0	17.573	253°, 23°	2.457241e6	4072.7	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] : fd3ee680-d9b2-11f1-43f3-b26b7fdf88e7 [observed] Occultation Date + Time : 2026-09-30 at 04:16:49 UT +/- 0.0 min [1] Object Designation : (322) Phaeo Orbit Class : MBA Star Designation : GDR3 3363936175707891200 Star Coordinates (ICRF) : RA = 07 16 21.9731, DE = +20 32 14.449 [2] Star Magnitudes : G = 12.89 mag, RP = 12.17 mag, BP = 13.46 mag Object Magnitude : V = 14.2 mag Estimated Magnitude Drop : 1.6 mag Estimated Max. Duration : 3.3 sec Object Mean Diameter : 70.8 km (src: astorb) Speed of the shadow : 21.5 km/s Elongation to Moon & Sun : 56° (sunlit = 85%), Sun = 79° Cross-track uncertainty : 1.0 mas = 1 km = 0.03 path-width (1-sig) RUWE and duplicate source : 1.14 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL89 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and DB] : fd3ee680-d9b2-11f1-43f3-b26b7fdf88e7 [observed]

 Occultation Date + Time   : 2026-09-30 at 04:16:49 UT +/- 0.0 min  [1]
 Object Designation        : (322) Phaeo
 Orbit Class               : MBA
 Star Designation          : GDR3 3363936175707891200
 Star Coordinates (ICRF)   : RA = 07 16 21.9731, DE = +20 32 14.449  [2]
 Star Magnitudes           : G = 12.89 mag, RP = 12.17 mag, BP = 13.46 mag
 Object Magnitude          : V = 14.2 mag
 Estimated Magnitude Drop  : 1.6 mag
 Estimated Max. Duration   : 3.3 sec
 Object Mean Diameter      : 70.8 km  (src: astorb)
 Speed of the shadow       : 21.5 km/s
 Elongation to Moon & Sun  : 56° (sunlit = 85%), Sun = 79°
 Cross-track uncertainty   : 1.0 mas = 1 km = 0.03 path-width (1-sig)
 RUWE and duplicate source : 1.14 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL89
 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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