Cora»Occultation

2026-03-17 / UCAC4 522-017107 / (433) Eros

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Sven Andersson	O+	VID	M360	DE	GPS	19:05:32	19:06:02.306	19:06:02.966	19:06:32	0.062	0.062	0.66	10.6
2	show	Konrad Guhl	O+	CCD	T150	DE	GPS	19:05:00	19:06:01.29	19:06:02.04	19:07:00	0.130	0.130	0.75	12.1
3	show	Christian Weber	O+	VID	T203	DE	GPS	19:04:04	19:06:01.07	19:06:01.71	19:07:15	0.080	0.080	0.64	10.3

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#659 : d05dae40-de6c-11f0-4858-4ca9fdcb69b9 [db: asteroids]

Using prediction d05dae40-de6c-11f0-4858-4ca9fdcb69b9 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 = 12 x 4 km
a',b' = 6.0, 2.0 km
X0,Y0 = -1183.1, 13.2 km
Mean diameter = 7 km

From 3 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: 2026-03-17, 19:06 UT (JD = 2461117.296)

DAMIT	Q	P (h)	λ, β	JD0	JD-JD0	φ0	Version	Modified	Vol-equiv D	Cmnt
# 3083	5.0	5.270	17°, 11°	2.451545e6	9572.3	32.64°	Shape model from PDS (433 EROS PLATE MODEL MSI 1708), rotation state from Konopliv et al. (2002)	2019-03-09	16.897 +/- 0.0 km	2019-03-08

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] : d05dae40-de6c-11f0-4858-4ca9fdcb69b9 [asteroids] Occultation Date + Time : 2026-03-17 at 19:05:24 UT +/- 0.0 min [1] Object Designation : (433) Eros Orbit Class : NEO Star Designation : GDR3 3346866979242573824 Star Coordinates (ICRF) : RA = 05 53 16.3998, DE = +14 12 56.008 [2] Star Magnitudes : G = 12.2 mag, RP = 11.89 mag, BP = 12.37 mag Object Magnitude : V = 11.02 mag Estimated Magnitude Drop : 0.3 mag Estimated Max. Duration : 1.8 sec Object Mean Diameter : 28.8 km (src: astorb) Speed of the shadow : 16.1 km/s Elongation to Moon & Sun : 107° (sunlit = 2%), Sun = 91° Cross-track uncertainty : 5.7 mas = 2 km = 0.08 path-width (1-sig) RUWE and duplicate source : 1.04 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#659 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and DB] : d05dae40-de6c-11f0-4858-4ca9fdcb69b9 [asteroids]

 Occultation Date + Time   : 2026-03-17 at 19:05:24 UT +/- 0.0 min  [1]
 Object Designation        : (433) Eros
 Orbit Class               : NEO
 Star Designation          : GDR3 3346866979242573824
 Star Coordinates (ICRF)   : RA = 05 53 16.3998, DE = +14 12 56.008  [2]
 Star Magnitudes           : G = 12.2 mag, RP = 11.89 mag, BP = 12.37 mag
 Object Magnitude          : V = 11.02 mag
 Estimated Magnitude Drop  : 0.3 mag
 Estimated Max. Duration   : 1.8 sec
 Object Mean Diameter      : 28.8 km  (src: astorb)
 Speed of the shadow       : 16.1 km/s
 Elongation to Moon & Sun  : 107° (sunlit = 2%), Sun = 91°
 Cross-track uncertainty   : 5.7 mas = 2 km = 0.08 path-width (1-sig)
 RUWE and duplicate source : 1.04 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#659
 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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