Cora»Occultation

2026-03-14 / UCAC4 565-027412 / (657) Gunlod

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Malcolm Jennings	O+	VID	M276	GB	GPS	19:41:00	19:43:23.75	19:43:26.95	19:45:00	0.074	0.074	3.20	33.6
2	show	Peter Tickner	O+	VID	T450	GB	GPS	19:40:58	19:43:16.62	19:43:21.29	19:45:25	0.100	0.100	4.67	49.0
3	show	Tim Haymes	O-	VID	M280	GB	GPS	19:42:00	::	::	19:45:00

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

3 observations found in db: sodis

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

JPL#127 : a9ab1b10-de6d-11f0-4858-e5523e9a7ed4 [db: asteroids]

Using prediction a9ab1b10-de6d-11f0-4858-e5523e9a7ed4 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 = -1120.6, 12.0 km
Circular diameter = 49 km

From 2 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.

Check Johnston Archive for satellites.

Sky projection (artificial light) for occ. time: 2026-03-14, 19:42 UT (JD = 2461114.321)

DAMIT	Q	P (h)	λ, β	JD0	JD-JD0	φ0	Version	Modified	Vol-equiv D	Cmnt
# 3549	1.0	15.929	267°, 33°	2.450982e6	10132.3	0.0°	None	2019-09-26	not scaled	2019-05-07
# 3550	1.0	15.929	104°, 44°	2.450982e6	10132.3	0.0°	None	2019-09-26	not scaled	2019-05-07

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] : a9ab1b10-de6d-11f0-4858-e5523e9a7ed4 [asteroids] Occultation Date + Time : 2026-03-14 at 19:43:59 UT +/- 0.0 min [1] Object Designation : (657) Gunlod Orbit Class : MBA Star Designation : GDR3 3376532730672813952 Star Coordinates (ICRF) : RA = 06 27 20.5475, DE = +22 49 16.249 [2] Star Magnitudes : G = 13.39 mag, RP = 12.53 mag, BP = 14.09 mag Object Magnitude : V = 15.93 mag Estimated Magnitude Drop : 2.6 mag Estimated Max. Duration : 4.0 sec Object Mean Diameter : 42.5 km (src: astorb) Speed of the shadow : 10.5 km/s Elongation to Moon & Sun : 154° (sunlit = 19%), Sun = 102° Cross-track uncertainty : 0.7 mas = 1 km = 0.02 path-width (1-sig) RUWE and duplicate source : 5.72 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#127 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and DB] : a9ab1b10-de6d-11f0-4858-e5523e9a7ed4 [asteroids]

 Occultation Date + Time   : 2026-03-14 at 19:43:59 UT +/- 0.0 min  [1]
 Object Designation        : (657) Gunlod
 Orbit Class               : MBA
 Star Designation          : GDR3 3376532730672813952
 Star Coordinates (ICRF)   : RA = 06 27 20.5475, DE = +22 49 16.249  [2]
 Star Magnitudes           : G = 13.39 mag, RP = 12.53 mag, BP = 14.09 mag
 Object Magnitude          : V = 15.93 mag
 Estimated Magnitude Drop  : 2.6 mag
 Estimated Max. Duration   : 4.0 sec
 Object Mean Diameter      : 42.5 km  (src: astorb)
 Speed of the shadow       : 10.5 km/s
 Elongation to Moon & Sun  : 154° (sunlit = 19%), Sun = 102°
 Cross-track uncertainty   : 0.7 mas = 1 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 5.72 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#127
 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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