Cora»Occultation

2026-05-23 / UCAC4 458-071392 / (780) Armenia

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Deborah Smith	O+	VID	M300	ES	GPS	02:30:43	02:31:38.493	02:31:47.995	02:32:44	0.177	0.177	9.50	97.9
2	show	Deborah Smith	O+	VID	M250	ES	GPS	02:30:48	02:31:43.558	02:31:53.184	02:32:49	0.142	0.142	9.63	99.2

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#78 : d1741330-33d2-11f1-6999-8458dd7f1327 [db: asteroids]

Using prediction d1741330-33d2-11f1-6999-8458dd7f1327 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 = -973.1, 12.0 km
Circular diameter = 104 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).

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Check Johnston Archive for satellites.

Map with groundtrack and observer stations

Event Details
Occultation UUID [and DB] : d1741330-33d2-11f1-6999-8458dd7f1327 [asteroids] Occultation Date + Time : 2026-05-23 at 02:31:25 UT +/- 0.01 min [1] Object Designation : (780) Armenia Orbit Class : MBA Star Designation : GDR3 4372863021903652736 Star Coordinates (ICRF) : RA = 17 48 40.0910, DE = +01 26 53.881 [2] Star Magnitudes : G = 14.94 mag, RP = 14.18 mag, BP = 15.56 mag Object Magnitude : V = 13.89 mag Estimated Magnitude Drop : 0.4 mag Estimated Max. Duration : 9.2 sec Object Mean Diameter : 94.4 km (src: astorb) Speed of the shadow : 10.3 km/s Elongation to Moon & Sun : 116° (sunlit = 46%), Sun = 145° Cross-track uncertainty : 1.0 mas = 1 km = 0.02 path-width (1-sig) RUWE and duplicate source : 1.01 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#78 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and DB] : d1741330-33d2-11f1-6999-8458dd7f1327 [asteroids]

 Occultation Date + Time   : 2026-05-23 at 02:31:25 UT +/- 0.01 min  [1]
 Object Designation        : (780) Armenia
 Orbit Class               : MBA
 Star Designation          : GDR3 4372863021903652736
 Star Coordinates (ICRF)   : RA = 17 48 40.0910, DE = +01 26 53.881  [2]
 Star Magnitudes           : G = 14.94 mag, RP = 14.18 mag, BP = 15.56 mag
 Object Magnitude          : V = 13.89 mag
 Estimated Magnitude Drop  : 0.4 mag
 Estimated Max. Duration   : 9.2 sec
 Object Mean Diameter      : 94.4 km  (src: astorb)
 Speed of the shadow       : 10.3 km/s
 Elongation to Moon & Sun  : 116° (sunlit = 46%), Sun = 145°
 Cross-track uncertainty   : 1.0 mas = 1 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 1.01 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#78
 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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